Details of the Researcher

PHOTO

Tadahiro Komeda
Section
Institute of Multidisciplinary Research for Advanced Materials
Job title
Professor
Degree

  • 理学博士（京都大学）

  • 理学修士（京都大学）

Education 2

  • Kyoto University　Graduate School, Division of Chemistry

    - 1989/03

  • Kyoto University　Faculty of Science　化学

    - 1984/03

Research Areas 1

  • Nanotechnology/Materials / Thin-film surfaces and interfaces /

Papers 179

  1. Revealing hydrogen bonding in ordered dopamine films through inelastic tunneling spectroscopy

    Jie Hou, Nuoyan Xu, Md.Zaved Hossain Khan, Lei Shan, Tadahiro Komeda

    Applied Surface Science　694　162852-162852　2025/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.apsusc.2025.162852 　

    ISSN： 0169-4332

  2. Back‐Gated MoS2 Field Effect Transistors as Probes for Melamine‐Induced Surface Charge Transfer Doping

    Muhammad Shamim Al Mamun, Tsuyoshi Takaoka, Zhipeng Wang, Tadahiro Komeda

    ChemistrySelect　10　(1)　2025/01/08

    Publisher: Wiley

    DOI： 10.1002/slct.202403982 　

    ISSN： 2365-6549

    eISSN： 2365-6549

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    Abstract In this study, we report on the customization of multilayer MoS2‐FET transfer properties by melamine via surface charge doping. NMP was used as a solvent to create the melamine solution. After melamine doping, the multilayer MoS2’s charge carrier density was roughly doubled. After melamine doping, mobility was calculated to be around 28.57 cm−2V−1s−1, whereas the pristine's mobility was approximately 27.38 cm−2V−1s−1. The subthreshold swing of the doped device was ∼ 0.94 V/decade, which is less than the pristine device's ∼ 1.6 V/decade. The doped device demonstrated outstanding switching properties. A factor of greater than 7 was seen in the reduction of extracted contact resistance. The melamine molecule forces n‐doping on the multilayer MoS2, as seen by the left shift of the threshold voltage following the doping process. Following the doping procedure, the Raman spectrum's downward trending E2g and A1g peaks shows that the n‐type doping system's electron concentration is rising. Melamine functions as an n‐type dopant, as confirmed by XPS evidence. Melamine is confirmed to be present on the MoS2 surface by TOF‐SIMS and AFM measurements. Chemical doping might be a useful technique for improving the layered materials' electrical characteristics.

  3. Caffeine-driven n-type doping in multilayer MoS2 field effect transistor

    Muhammad Shamim Al Mamun, Tsuyoshi Takaoka, Tadahiro Komeda

    Thin Solid Films　809　140591-140591　2025/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.tsf.2024.140591 　

    ISSN： 0040-6090

  4. Hysteresis in the transfer characteristics of MoS2 field effect transistors: gas, temperature and photo-irradiation effect

    Muhammad Shamim Al Mamun, Yasuyuki Sainoo, Tsuyoshi Takaoka, Atsushi Ando, Tadahiro Komeda

    RSC Advances　14　(49)　36517-36526　2024/11/15

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d4ra04820b 　

    eISSN： 2046-2069

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    Light irradiation, ambient gas, and temperature all significantly increase hysteresis. Our observations show distinctive hysteretic behavior in MoS2-FET in an oxygen environment at 1 atm.

  5. Interface analysis of oxide free MoS2 films fabricated by solution process

    Md Iftekharul Alam, Rikiya Sumichika, Junichi Tsuchimoto, Tadahiro Komeda, Akinobu Teramoto

    Scientific Reports　14　(1)　26779-26779　2024/11/05

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41598-024-78229-1 　

    eISSN： 2045-2322

  6. Photo-switching operation of MoS2 field effect transistor by photoisomerization of azobenzene in solution delivered on a microfluidic platform

    Md Nasiruddin, Zhipeng Wang, Hiroki Waizumi, Fatema Tul Afroz, Tsuyoshi Takaoka, Yasuyuki Sainoo, Mao Fukuyama, Tadahiro Komeda

    Nanotechnology　35　(39)　395501-395501　2024/07/12

    Publisher: IOP Publishing

    DOI： 10.1088/1361-6528/ad5dc0 　

    ISSN： 0957-4484

    eISSN： 1361-6528

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    Abstract Combining the photoisomerization of molecules with an electrical device is important for developing optoelectronic devices. Field effect transistors (FETs) with atomically thin channels are suitable for this purpose because the FET properties respond to chemical changes in molecules. Since the photoisomerization wavelength of the switching molecules can be tuned, complex logic operations can be realized if a specific molecule is delivered to the target FET of an integrated circuit. However, conventional techniques for transferring molecules, such as drop casting and sublimation, cannot efficiently realize this goal. In this study, we fabricated a MoS2 FET device combined with a microfluidic platform, wherein the MoS2 channel was in contact with the flow of an azobenzene solution in isopropyl alcohol as the solvent. UV radiation (365 nm) and thermal relaxation realize the cycle of trans- and cis-azobenzene states and the switching of the substantial FET properties. This study demonstrated the feasibility of using the solution for optical switching of the MoS2-FET, which can realize quick phase changes in the molecule and the delivery of the molecule to the target FET by a microfluidic platform.

  7. Switching of n- and p-type doping with partial pressure of oxygen gas on few layers MoS2-field effect transistor

    Muhammad Shamim Al Mamun, Yasuyuki Sainoo, Tsuyoshi Takaoka, Hiroki Waizumi, Zhipeng Wang, Atsushi Ando, Tadahiro Komeda

    Chemical Physics　581　112255-112255　2024/05

    Publisher: Elsevier BV

    DOI： 10.1016/j.chemphys.2024.112255 　

    ISSN： 0301-0104

    eISSN： 1556-5068

  8. In-situ methyl red doped MoS2 field effect transistor made by atomically thin MoS2 channel

    Muhammad Shamim Al Mamun, Hiroki Waizumi, Tsuyoshi Takaoka, Zhipeng Wang, Atsushi Ando, Tadahiro Komeda

    Organic Electronics　126　106989-106989　2024/03

    Publisher: Elsevier BV

    DOI： 10.1016/j.orgel.2023.106989 　

    ISSN： 1566-1199

  9. Spin state manipulation of a spiropyran (SP) and Dy complex with SP ligand molecules on Au(111) by scanning tunneling microscopy

    Jie Hou, Dongzhe Li, Lucie Norel, Stéphane Rigaut, Zhipeng Wang, Lei Shan, Tadahiro Komeda

    Journal of Materials Chemistry C　11　(48)　16933-16940　2023/11

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d3tc02513f 　

    ISSN： 2050-7526

    eISSN： 2050-7534

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    The tunneling electrons triggered conformational changes of SP to MC and SP-DyL(hfac)2 to MC-DyL(hfac)2 were successfully implemented with tunneling electrons injection.

  10. Solvation Effects on the Electrical Properties of a Microfluid-Assisted Solution Field-Effect Transistor with Atomically Thin MoS2 Layers

    Md Nasiruddin, Zhipeng Wang, Hiroki Waizumi, Tsuyoshi Takaoka, Yasuyuki Sainoo, Atsushi Ando, Ryuichi Arafune, Mao Fukuyama, Akihide Hibara, Tadahiro Komeda

    ACS APPLIED NANO MATERIALS　6　15175-15182　2023/08

    DOI： 10.1021/acsanm.3c02828 　

    eISSN： 2574-0970

  11. Control of the Magnetic Interaction between Single-Molecule Magnet TbPc2 and Superconductor NbSe2 Surface by an Intercalated Co Atom

    Ferdous Ara, Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossain, Keiichi Katoh, Masahiro Yamashita, Tadahiro Komeda

    Nano Letters　23　(15)　6900-6906　2023/07/28

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.nanolett.3c01298 　

    ISSN： 1530-6984

    eISSN： 1530-6992

  12. Synthesis and functionalization of zinc phosphate@polyglycidyl methacrylate composites for antimicrobial drug immobilization and controlled release: an in vitro study

    Tonmoye Sarkar Shathi, Md. Abdur Rahman, Md. Ataur Rahman, Md. Nasiruddin, Md. Abdul Alim Al-Bari, Sagar Pande, Tadahiro Komeda, Anwar Ul-Hamid, Hasan Ahmad, Md. Rabiul Karim

    New Journal of Chemistry　47　(30)　14534-14550　2023/07

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d3nj01822a 　

    ISSN： 1144-0546

    eISSN： 1369-9261

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    Functionalized polyglycidyl methacrylate coated ZnPPs with enhanced surface properties were synthesized for physical immobilization, and sustained release of antibacterial drug under physiological and slightly acidic media.

  13. Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution

    Md. Rashid Al-Mamun, Md. Zaveed Iqbal Rokon, Md. Abdur Rahim, Md. Ikram Hossain, Md. Shahinoor Islam, Md. Romzan Ali, Md Sadek Bacchu, Hiroki Waizumi, Tadahiro Komeda, Md Zaved Hossain Khan

    Heliyon　9　(6)　e16506-e16506　2023/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.heliyon.2023.e16506 　

    ISSN： 2405-8440

  14. A microfluidic approach for the detection of uric acid through electrical measurement using an atomically thin MoS2 field-effect transistor Peer-reviewed

    Md Nasiruddin, Hiroki Waizumi, Tsuyoshi Takaoka, Zhipeng Wang, Yasuyuki Sainoo, Muhammad Shamim Al Mamun, Atsushi Ando, MAO FUKUYAMA, Akihide Hibara, Tadahiro Komeda

    Analyst　148　4091-4098　2023/06

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d3an00772c 　

    ISSN： 0003-2654

    eISSN： 1364-5528

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    There is a demand for biosensors working in vivo conditions, which requires significant device size and endurance miniaturization in solution environments. We demonstrated the detection of the uric acid (UA)...

  15. Spatially Resolving Electron Spin Resonance of pi-Radical in Single-molecule Magnet

    Ryo Kawaguchi, Katsushi Hashimoto, Toshiyuki Kakudate, Keiichi Katoh, Masahiro Yamashita, Tadahiro Komeda

    NANO LETTERS　23　213-219　2022/12

    DOI： 10.1021/acs.nanolett.2c04049 　

    ISSN： 1530-6984

    eISSN： 1530-6992

  16. Ligand Rotation Induced Oxidation State Change and Spin Appearance of the Bis(phthalocyaninato)cerium (CePc2) Molecule on the Au(111) Surface

    Islam Saiful, Mohammad Ikram Hossain, Keiichi Katoh, Masahiro Yamashita, Ryuichi Arafune, Syed Mohammad Fakruddin Shahed, Tadahiro Komeda

    The Journal of Physical Chemistry C　126　(40)　17152-17163　2022/09/29

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.jpcc.2c04234 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  17. Observation of a Yu-Shiba-Rusinov state originating from the magnetic moment in a curved monolayer island of 1T-phase NbSe2

    Hossain Mohammad Ikram, Ara Ferdous, Shahed Syed Mohammad Fakruddin, Zhipeng Wang, Tadahiro Komeda

    Nanoscale　32　(7)　9860-9868　2022/06

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d2nr02007f 　

    ISSN： 2040-3364

    eISSN： 2040-3372

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    A 1T island is formed on the 2H substrate of superconductor NbSe2. The Yu-Shiba-Rusinov state is enhanced at the curved position of the island, suggesting the curvature induced magnetic field for NbSe2.

  18. Observation of Yu–Shiba–Rusinov States and Inelastic Tunneling Spectroscopy for Intramolecule Magnetic Exchange Interaction Energy of Terbium Phthalocyanine (TbPc) Species Adsorbed on Superconductor NbSe2

    Syed Mohammad Fakruddin Shahed, Ferdous Ara, Mohammad Ikram Hossain, Keiichi Katoh, Masahiro Yamashita, Tadahiro Komeda

    ACS Nano　16　(5)　7651-7661　2022/05/24

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsnano.1c11221 　

    ISSN： 1936-0851

    eISSN： 1936-086X

  19. 原子層電界効果トランジスタを用いた分子検出ー電流特性で探る分子物性・化学反応

    米田 忠弘, 高岡 毅

    化学　77　(6)　64-65　2022/05/18

  20. Large difference of doping behavior of tetracyanoquinodimethane (TCNQ) and 2,3,5,6-Tetrafluoro-7,7,8,8- tetracyanoquinodimethane (F4-TCNQ) on field effect transistor with channel of atomic layer MoS2

    Hiroki Waizumi, Muhammad Shamim Al Mamun, Tsuyoshi Takaoka, Md Iftekharul Alam, Yudai Tanaka, Atsushi Ando, Zhipeng Wang, Ryuichi Arafune, Tadahiro Komeda

    Applied Surface Science　571　151252-151252　2022/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.apsusc.2021.151252 　

    ISSN： 0169-4332

  21. Chemistry of Photo Isomerization and Thermal Reset of Nitro-Spiropyran and Merocyanine Molecules on Channel of MoS2 Field Effect Transistor Peer-reviewed

    Muhammad Shamim Al Mamun, Yasuyuki Sainoo, Tsuyoshi Takaoka, Hiroki Waizumi, Zhipeng Wang, Md Iftekharul Alam, Atsushi Ando, Ryuichi Arafune, Tadahiro Komeda

    Physical Chemistry Chemical Physics　18　(13)　2648-2654　2021/11

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d1cp04283a 　

    ISSN： 1463-9076

    eISSN： 1463-9084

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    We explore the chemical reaction of the photo isomerization and thermal reaction of photochromic spiropyrans (SP) (1′,3′-Dihydro-1′,3′,3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-(2H)-indole] molecule deposited on atomically thin channel of MoS2 for field effect transistor (FET)...

  22. Chemistry of the photoisomerization and thermal reset of nitro-spiropyran and merocyanine molecules on the channel of the MoS2 field effect transistor

    Muhammad Shamim Al Mamun, Yasuyuki Sainoo, Tsuyoshi Takaoka, Hiroki Waizumi, Zhipeng Wang, Md Iftekharul Alam, Atsushi Ando, Ryuichi Arafune, Tadahiro Komeda

    Physical Chemistry Chemical Physics　23　(48)　27273-27281　2021

    DOI： 10.1039/d1cp04283a 　

    ISSN： 1463-9076

    eISSN： 1463-9084

  23. Sensor behavior of MoS2 field-effect transistor with light injection toward chemical recognition

    Md Iftekharul Alam, Tsuyoshi Takaoka, Hiroki Waizumi, Yudai Tanaka, Muhammad Shamim Al Mamun, Atsushi Ando, Tadahiro Komeda

    RSC Advances　11　(43)　26509-26515　2021

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d1ra03698j 　

    eISSN： 2046-2069

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    <p>The application of field-effect transistor (FET) devices with atomically thin channels as sensors has attracted significant attention. We further explore the method to attach the chemical recognition capability by combining with light injection.</p>

  24. Terbium(iii) bis-phthalocyaninato single-molecule magnet encapsulated in a single-walled carbon nanotube

    Keiichi Katoh, Junya Sato, Ryo Nakanishi, Ferdous Ara, Tadahiro Komeda, Yuki Kuwahara, Takeshi Saito, Brian K. Breedlove, Masahiro Yamashita

    Journal of Materials Chemistry C　9　10697-10704　2021

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d1tc01026c 　

    ISSN： 2050-7526

    eISSN： 2050-7534

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    <p>TbPc2 SMMs were encapsulated in the internal nano space of SWCNTs for the first time. From the STM/STS, it was determined that there were electronic interactions between the TbPc2 and SWCNTs in TbPc2@SWCNT.</p>

  25. Microfluidic tank assisted nicotine sensing property of field effect transistor composed of an atomically thin MoS<inf>2</inf>channel

    Muhammad Shamim Al Mamun, Yudai Tanaka, Hiroki Waizumi, Tsuyoshi Takaoka, Zhipeng Wang, Md Iftekharul Alam, Atsushi Ando, Mao Fukuyama, Akihide Hibara, Tadahiro Komeda

    Physical Chemistry Chemical Physics　22　(47)　27724-27731　2020/12/21

    DOI： 10.1039/d0cp05710j 　

    ISSN： 1463-9076

  26. In situ study of sensor behavior of MoS2 field effect transistor for methyl orange molecule in ultra high vacuum condition Peer-reviewed

    Muhammad Shamim Al Mamun, Hiroki Waizumi, Tsuyoshi Takaoka, Md Iftekharul Alam, Yudai Tanaka, Atsushi Ando, Zhipeng Wang, Tadahiro Komeda

    Nanotechnology　32　(7)　075501-075501　2020/11/24

    Publisher: IOP Publishing

    DOI： 10.1088/1361-6528/abc3e1 　

    ISSN： 0957-4484

    eISSN： 1361-6528

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    Abstract We investigate the sensor behavior of the MoS2 field effect transistor (FET) device with the deposition of methyl orange (MO) molecule which is widely used as a chemical probe. The channel of the FET is made of the single layer of MoS2 which makes it highly sensitive to the molecule adsorption, but at the same time the behavior depends much on the surface conditions of the MoS2 channel. In order to make the channel-surface conditions more defined, we prepare an in situ experimental system in which the molecule deposition and the surface- and electrical-characterization of the MoS2 FET are executed in a single ultra-high vacuum chamber. This system makes it possible to examine the change of the FET properties with precise control of the molecule coverage in the sub-monolayer region without the effect of the atmosphere. We detected the shift of the I d–V g curve of the MoS2-FET device with the increase of the molecule coverage (θ) of the MO molecule, which is quantitatively analyzed by plotting the threshold voltage (V th) of the I d–V g curve as a function of θ. The V th shifts towards the negative direction and the initial change with θ can be expressed with an exponential function of θ, which can be accounted for with the Langmuir type adsorption of the molecule for the first layer and the charge transfer from the molecule to the substrate. The V th versus θ curve shows a kink at a certain θ, which is conserved as the starting of the second layer growth. We detected the adsorption of MO far less than monolayer and the phase change from the first layer to the second layer growth, which is realized by the benefit of the in situ UHV experimental condition.

  27. In Situ Study of Molecular Doping of Chlorine on MoS2 Field Effect Transistor Device in Ultrahigh Vacuum Conditions Peer-reviewed

    Nguyen Tat Trung, Mohammad Ikram Hossain, Md Iftekharul Alam, Atsushi Ando, Osamu Kitakami, Nobuaki Kikuchi, Tsuyoshi Takaoka, Yasuyuki Sainoo, Ryuichi Arafune, Tadahiro Komeda

    ACS Omega　5　(43)　28108-28115　2020/10/22

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsomega.0c03741 　

    ISSN： 2470-1343

    eISSN： 2470-1343

  28. The Effect of Molecular Adsorption on Electrical Properties of MoS2-FET Invited Peer-reviewed

    Tsuyoshi TAKAOKA, Md IFTEKHAL ALAM, Hiroki WAIZUMI, Muhammad SHAMIM AL Mamun, Yudai Tanaka, Nguyen Tat Trung, Atsushi Ando, Tadahiro Komeda

    Vacuum and Surface Science　63　(8)　419-424　2020/08

    DOI： 10.1380/vss.63.419 　

    ISSN： 2434-8589

  29. Hybridized Kondo State Formed by π Radical Assemblies Peer-reviewed

    Islam Saiful, Tomoko Inose, Daisuke Tanaka, Puneet Mishra, Takuji Ogawa, Tadahiro Komeda

    J. Phys. Chem. C 2020　124　12024-12029　2020/05

    DOI： 10.1021/acs.jpcc.0c03998 　

  30. Enhanced magnetic spin-spin interactions observed between porphyrazine derivatives on Au(111) Peer-reviewed

    Jie Hou, Yu Wang, Keitaro Eguchi, Chihiro Nanjo, Tsuyoshi Takaoka, Yasuyuki Sainoo, Ryuichi Arafune, Kunio Awaga, Tadahiro Komeda

    COMMUNICATIONS CHEMISTRY　3　(1)　2020/03

    DOI： 10.1038/s42004-020-0282-5 　

    ISSN： 2399-3669

  31. Structural, Electronic, and Magnetic Properties of Cobalt Tetrakis (Thiadiazole) Porphyrazine Molecule Films on Au(111) Peer-reviewed

    Yu Wang, Jie Hou, Keitaro Eguchi, Chihiro Nanjo, Tsuyoshi Takaoka, Yasuyuki Sainoo, Kunio Awaga, Tadahiro Komeda

    ACS OMEGA　5　(12)　6676-6683　2020/03

    DOI： 10.1021/acsomega.9b04453 　

    ISSN： 2470-1343

  32. Spatially resolved surface vibrational spectroscopies

    Tadahiro Komeda, Norio Okabayashi

    Springer Handbooks　815-852　2020

    Publisher: Springer Science and Business Media Deutschland GmbH

    DOI： 10.1007/978-3-030-46906-1_25 　

    ISSN： 2522-8706 2522-8692

  33. Magnetic Hysteresis of Single-Molecule Magnets Adsorbed on Ferromagnetic Substrate. International-journal Peer-reviewed

    Qi ZK, Mishra P, Ara F, Oka H, Sainoo Y, Katoh K, Yamashita M, Komeda T

    ACS nano　2019/11

    DOI： 10.1021/acsnano.9b04428 　

    ISSN： 1936-0851

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    Single-molecule magnets (SMMs), exhibiting magnetic bistability and a large energy barrier to the magnetization relaxation, are attractive candidates for realizing efficient spintronic devices such as ultra-high-density memories and quantum computers. Here, we demonstrate robust spin-polarization of a quintessential SMM, the double-decker bis(phthalocyaninato)terbium(III) (TbPc2) molecules, adsorbed on the bilayer Co islands on Au(111) using spin-polarized scanning tunneling microscopy, visualizing the switching of the SMM spin with submolecular resolution. Our results reveal that molecular spins of TbPc2 are antiferromagnetically coupled to the magnetization of the Co island, irrespective of the bonding configuration of the molecule. Stable spin-polarization is inferred from the substantial hysteresis observed in the magnetization curves measured over the molecules. This is in contrast to the reports of near-zero remanence for the bulk TbPc2 crystals and the TbPc2 molecules on a nonmagnetic substrate. The observation of a significant hysteretic opening can be attributed to the large magnetic anisotropy barrier of the molecule and the suppression of the quantum tunneling process. We anticipate that our approach of using the substrate to control and enhance the properties of a TbPc2 SMM will accelerate further research toward realization of SMM-based functional spintronic devices.

  34. Spin properties of single-molecule magnet of double-decker Tb(III)-phthalocyanine (TbPc2) on ferromagnetic Co film characterized by spin polarized STM (SP-STM) Peer-reviewed

    Ara Ferdous, Oka Hirofumi, Sainoo Yasuyuki, Katoh Keiichi, Yamashita Masahiro, Komeda Tadahiro

    JOURNAL OF APPLIED PHYSICS　125　(18)　183901-183901　2019/05/14

    DOI： 10.1063/1.5079964 　

    ISSN： 0021-8979

  35. Single molecule magnet for quantum information process'

    Tadahiro Komeda, Keiichi Katoh, Masahiro Yamashita

    Molecular Technology: Materials Innovation　263-304　2019/02/06

    Publisher: wiley

    DOI： 10.1002/9783527823987.vol3_c11 　

  36. Inelastic electron tunneling spectroscopy by STM of phonons at solid surfaces and interfaces Peer-reviewed

    Minamitani Emi, Takagi Noriaki, Arafune Ryuichi, Frederiksen Thomas, Komeda Tadahiro, Ueba Hiromu, Watanabe Satoshi

    PROGRESS IN SURFACE SCIENCE　93　(4)　131-145　2018/12

    DOI： 10.1016/j.progsurf.2018.09.002 　

    ISSN： 0079-6816

  37. Coordination Structure Conversion of Protonated Bisporphyrinato Terbium(III) Double-Decker Complexes and Creation of a Kondo Assembly by Electron Injection on Au(111) Surface Peer-reviewed

    T. Inose, D. Tanaka, J. Liu, M. Kajihara, P. Mishra, T. Ogawa, T. Komeda

    Nanoscale　10　19409-19417　2018/09

    DOI： 10.1039/C8NR04630A 　

  38. Scanning probe microscopy

    Takahashi, T., Fukui, K.-I., Kageshima, M., Komeda, T., Nakajima, K., Nakayama, T., Sumitomo, K., Uchihashi, T.

    Japanese Journal of Applied Physics　57　(8)　2018

    DOI： 10.7567/JJAP.57.08N001 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  39. Inter-molecule interaction for magnetic property of vanadyl tetrakis (thiadiazole) porphyrazine film on Au(111) Peer-reviewed

    Hou, Jie, Wang, Yu, Eguchi, Keitaro, Nanjo, Chihiro, Takaoka, Tsuyoshi, Sainoo, Yasuyuki, Awaga, Kunio, Komeda, Tadahiro

    Applied Surface Science　440　16-19　2018

    DOI： 10.1016/j.apsusc.2018.01.001 　

  40. Atomic-scale characterization of the interfacial phonon in graphene/SiC

    Emi Minamitani, Ryuichi Arafune, Thomas Frederiksen, Tetsuya Suzuki, Syed Mohammad Fakruddin Shahed, Tomohiro Kobayashi, Norifumi Endo, Hirokazu Fukidome, Satoshi Watanabe, Tadahiro Komeda

    Physical Review B　96　(15)　155431　2017/10/11

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevb.96.155431 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  41. Spatially Resolved Magnetic Anisotropy of Cobalt Nanostructures on the Au(111) Surface Peer-reviewed

    Puneet Mishra, Zhi Kun Qi, Hirofumi Oka, Kohji Nakamura, Tadahiro Komeda

    NANO LETTERS　17　(9)　5843-5847　2017/09

    DOI： 10.1021/acs.nanolett.7b03114 　

    ISSN： 1530-6984

    eISSN： 1530-6992

  42. Deposition of an Ultraflat Graphene Oxide Nanosheet on Atomically Flat Substrates Peer-reviewed

    M. Z. H. Khan, S. M. F. Shahed, N. Yuta, T. Komeda

    JOURNAL OF ELECTRONIC MATERIALS　46　(7)　4160-4165　2017/07

    DOI： 10.1007/s11664-017-5327-x 　

    ISSN： 0361-5235

    eISSN： 1543-186X

  43. Formation and Characterization of Copper Nanocube-Decorated Reduced Graphene Oxide Film Peer-reviewed

    M. Z. H. Khan, M. A. Rahman, P. Yasmin, F. K. Tareq, N. Yuta, T. Komeda, R. A. Jahan

    JOURNAL OF NANOMATERIALS　2017　5702838-5702838　2017

    DOI： 10.1155/2017/5702838 　

    ISSN： 1687-4110

    eISSN： 1687-4129

  44. DFT calculations on atom-specific electronic properties of G/SiC(0001) Peer-reviewed

    M. Kajihara, T. Suzuki, S. M. F. Shahed, T. Kameda, E. Minamitani, S. Watanabe

    SURFACE SCIENCE　647　39-44　2016/05

    DOI： 10.1016/j.susc.2015.12.004 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  45. The Frontier of Molecular Spintronics Based on Multiple-Decker Phthalocyaninato Tb-III Single-Molecule Magnets Peer-reviewed

    Keiichi Katoh, Tadahiro Komeda, Masahiro Yamashita

    CHEMICAL RECORD　16　(2)　987-1016　2016/04

    DOI： 10.1002/tcr.201500290 　

    ISSN： 1527-8999

    eISSN： 1528-0691

  46. 19pBE-7 Magnetic properties of cobalt islands on Au(111) studied by spin-polarized scanning tunneling microscopy

    Mishra Puneet, Qi Zhi Kun, Oka Hirofumi, Komeda Tadahiro

    Meeting Abstracts of the Physical Society of Japan　71　2505-2505　2016

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.71.1.0_2505 　

    ISSN： 2189-079X

  47. Chargetransfer of MoS2 and Adsorbed Dopamine

    Nguyen Tat Trung, KOMEDA Tadahiro, ANDO Atsushi

    Abstract of annual meeting of the Surface Science of Japan　36　61-61　2016

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.36.0_61 　

  48. Coverage dependence of the magnetic anisotropy energy of Co islands on Au(111): a spin-polarized STM study

    Oka Hirofumi, Mishra Puneet, Qi Zhi Kun, Komeda Tadahiro

    Meeting Abstracts of the Physical Society of Japan　71　941-941　2016

    Publisher: The Physical Society of Japan

    DOI： 10.11316/jpsgaiyo.71.2.0_941 　

  49. Spin-resolved band structure of a ferromagnetic Co nano-island studied by spin-polarized STM

    Oka Hirofumi, Komeda Tadahiro

    Meeting Abstracts of the Physical Society of Japan　71　948-948　2016

    Publisher: The Physical Society of Japan

    DOI： 10.11316/jpsgaiyo.71.2.0_948 　

  50. A scanning tunneling microscopy study of the electronic and spin states of bis(phthalocyaninato)terbium(III) (TbPc2) molecules on Ag(111) Peer-reviewed

    Ferdous Ara, Zhi Kun Qi, Jie Hou, Tadahiro Komeda, Keiichi Katoh, Masahiro Yamashita

    DALTON TRANSACTIONS　45　(42)　16644-16652　2016

    DOI： 10.1039/c6dt01967f 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  51. Surface confinement of TbPc2-SMMs: structural, electronic and magnetic properties Peer-reviewed

    Eufemio Moreno Pineda, Tadahiro Komeda, Keiichi Katoh, Masahiro Yamashita, Mario Ruben

    DALTON TRANSACTIONS　45　(46)　18417-18433　2016

    DOI： 10.1039/c6dt03298b 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  52. Visualizing Optoelectronic Processes at the Nanoscale Peer-reviewed

    Puneet Mishra, Tadahiro Komeda

    ACS NANO　9　(11)　10540-10544　2015/11

    DOI： 10.1021/acsnano.5b06282 　

    ISSN： 1936-0851

    eISSN： 1936-086X

  53. Modulation of the molecular spintronic properties of adsorbed copper corroles Peer-reviewed

    Fan Wu, Jie Liu, Puneet Mishra, Tadahiro Komeda, John Mack, Yi Chang, Nagao Kobayashi, Zhen Shen

    NATURE COMMUNICATIONS　6　7547-7547　2015/06

    DOI： 10.1038/ncomms8547 　

    ISSN： 2041-1723

  54. Frontier of Molecular Spintronics Based on Multiple-Decker Phthalocyaninato Tb(lll) Single-Molecule Magnets Peer-reviewed

    K. Katoh, T. Komeda, M. Yamashita

    Chemical Record　2015/04

    DOI： 10.1002/tcr.201500290 　

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    8619

  55. Obsernation of kondo effecf on muiti-deckor porphgrin molecuieg by STM

    QI ZHIKUN, sato Ryuki, Ara Ferdous, Saino Yasuyuki, Komeda Tadahiro, Inose Tomoko, Tanaka Daisuke, Ogawa Takuji

    Abstract of annual meeting of the Surface Science of Japan　35　144-144　2015

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.35.0_144 　

  56. The magnetic property control of single molecule magnet using scanning tunneling microscopy

    Sato Ryuki, Qi Zhikun, Ara Ferdous, Saino Yasuyuki, Komeda Tadahiro, Inose Tomoko, Tanaka Daisuke, Ogawa Takuji

    Abstract of annual meeting of the Surface Science of Japan　35　157-157　2015

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.35.0_157 　

  57. STM observation of SAM films on Fe(110)

    Asami Sho, Komeda Tadahiro, Sainoo Yasuyuki

    Abstract of annual meeting of the Surface Science of Japan　35　236-236　2015

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.35.0_236 　

  58. The layered material FET for specific molecular detection

    Nguyen Tat Trung, Watanabe Eiichiro, Osato Hirotaka, Tsuya Daiju, Komeda Tadahiro, Ando Atsushi

    Abstract of annual meeting of the Surface Science of Japan　35　320-320　2015

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.35.0_320 　

  59. Spins of adsorbed molecules investigated by the detection of Kondo resonance Peer-reviewed

    Tadahiro Komeda

    SURFACE SCIENCE　630　343-355　2014/12

    DOI： 10.1016/j.susc.2014.07.012 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  60. STM and XPS study of CeO2(111) reduction by atomic hydrogen Peer-reviewed

    Syed Mohammad Fakruddin Shahed, Tomo Hasegawa, Yasuyuki Sainoo, Yoshihide Watanabe, Noritake Isomura, Atsushi Beniya, Hirohito Hirata, Tadahiro Komeda

    SURFACE SCIENCE　628　30-35　2014/10

    DOI： 10.1016/j.susc.2014.05.008 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  61. Interaction of gold nanoparticles with a TiO2 film formed on Si(100) Peer-reviewed

    Yohei Kakefuda, Shiori Munakata, Kazuyuki Edamoto, Yoshiyuki Igari, Tadahiro Komeda

    JAPANESE JOURNAL OF APPLIED PHYSICS　53　(7)　075002-1-075002-4　2014/07

    DOI： 10.7567/JJAP.53.075002 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  62. Double-decker phthalocyanine complex: Scanning tunneling microscopy study of film formation and spin properties Peer-reviewed

    Tadahiro Komeda, Keiichi Katoh, Masahiro Yamashita

    PROGRESS IN SURFACE SCIENCE　89　(2)　127-160　2014/05

    DOI： 10.1016/j.progsurf.2014.03.001 　

    ISSN： 0079-6816

  63. Variation of Kondo Temperature Induced by Molecule-Substrate Decoupling in Film Formation of Bis (phthalocyaninato)terbium(III) Molecules on Au(111) Peer-reviewed

    Tadahiro Komeda, Hironari Isshiki, Jie Liu, Keiichi Katoh, Masahiro Yamashita

    ACS NANO　8　(5)　4866-4875　2014/05

    DOI： 10.1021/nn500809v 　

    ISSN： 1936-0851

    eISSN： 1936-086X

  64. Epitaxial growth of CeO2(111) film on Ru(0001): Scanning tunneling microscopy (STM) and x-ray photoemission spectroscopy (XPS) study Peer-reviewed

    Tomo Hasegawa, Syed Mohammad Fakruddin Shahed, Yasuyuki Sainoo, Atsushi Beniya, Noritake Isomura, Yoshihide Watanabe, Tadahiro Komeda

    JOURNAL OF CHEMICAL PHYSICS　140　(4)　044711-1-044711-6　2014/01

    DOI： 10.1063/1.4849595 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  65. Surface temperature dependence on AlN film formation processes induced by supersonic N2 molecular beam

    Yuden Teraoka, Muneaki Jinno, Tsuyoshi Takaoka, James Robert Harries, Ryuta Okada, Yutaro Iwai, Akitaka Yoshigoe, Tadahiro Komeda

    IEEJ Transactions on Electronics, Information and Systems　134　(4)　524-525　2014

    Publisher: Institute of Electrical Engineers of Japan

    DOI： 10.1541/ieejeiss.134.524 　

    ISSN： 1348-8155 0385-4221

  66. Tip-enhanced Raman spectroscopy of 4, 4'-bipyridine and 4,4′-bipyridine N,N'-dioxide adsorbed on gold thin films Peer-reviewed

    I.I. RzeŹnicka, H.Horino, N. Kikkawa, S. Sakaguchi, A.Morita, S. Takahashi, T. Komeda, H. Fukumura, T. Yamada, M. Kawai

    Surface Science　617　1-9　2013/11

    DOI： 10.1016/j.susc.2013.08.010 　

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    7623

  67. Metal electrode formation on organic film using xe-buffer-layer-assisted deposition for efficient measurement of inelastic tunneling spectroscopy Peer-reviewed

    Abdur Rahim, Jie Liu, Syed Mohammad Fakruddin Shahed, Tadahiro Komeda

    Applied Physics Express　6　(10)　105201　2013/10

    DOI： 10.7567/APEX.6.105201 　

    ISSN： 1882-0778 1882-0786

  68. Variation of Kondo Peak Observed in the Assembly of Heteroleptic 2,3-Naphthalocyaninato Phthalocyaninato Tb(III) Double-Decker Complex on Au(111) Peer-reviewed

    Tadahiro Komeda, Hironari Isshiki, Jie Liu, Keiichi Katoh, Minoru Shirakata, Brian K. Breedlove, Masahiro Yamashita

    ACS NANO　7　(2)　1092-1099　2013/02

    DOI： 10.1021/nn304035h 　

    ISSN： 1936-0851

    eISSN： 1936-086X

  69. Inelastic electron tunneling process for alkanethiol self-assembled monolayers Peer-reviewed

    Norio Okabayashi, Magnus Paulsson, Tadahiro Komeda

    PROGRESS IN SURFACE SCIENCE　88　(1)　1-38　2013/02

    DOI： 10.1016/j.progsurf.2012.11.001 　

    ISSN： 0079-6816

  70. Switching of the Kondo Resonance of a 2,3-Naphthalocyaninato Phthalocyaninato Tb(III) Double-Decker Complex via Surface Chirality Peer-reviewed

    Tadahiro Komeda, Hironari Isshiki, Jie Liu, Keiichi Katoh, Minoru Shirakata, Brian K. Breedlove, Masahiro Yamashita

    ACS Nano　2013

    DOI： 10.1021/nn304035h 　

  71. First Observation of a Kondo Resonance for a Stable Neutral Pure Organic Radical, 1,3,5-Triphenyl-6-oxoverdazyl, Adsorbed on the Au(111) Surface Peer-reviewed

    Jie Liu, Hironari Isshiki, Keiichi Katoh, Takaumi Morita, Brian K. Breedlove, Masahiro Yamashita, Tadahiro Komeda

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　135　(2)　651-658　2013/01

    DOI： 10.1021/ja303510g 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  72. Spin Doping of Individual Molecules by Using Single-Atom Manipulation Peer-reviewed

    Roberto Robles, Nicolas Lorente, Hironari Isshiki, Jie Liu, Keiichi Katoh, Brian K. Breedlove, Masahiro Yamashita, Tadahiro Komeda

    NANO LETTERS　12　(7)　3609-3612　2012/07

    DOI： 10.1021/nl301301e 　

    ISSN： 1530-6984

    eISSN： 1530-6992

  73. Molecular Spintronics Based on Single-Molecule Magnets Composed of Multiple-Decker Phthalocyaninato Terbium(III) Complex Peer-reviewed

    Keiichi Katoh, Hironari Isshiki, Tadahiro Komeda, Masahiro Yamashita

    CHEMISTRY-AN ASIAN JOURNAL　7　(6)　1154-1169　2012/06

    DOI： 10.1002/asia.201100992 　

    ISSN： 1861-4728

    eISSN： 1861-471X

  74. Noble metal electrode formation on alkanethiol self-assembled monolayer using Xe buffer layer; inelastic tunneling spectroscopy characterization

    Rahim Abdur, Komeda Tadahiro

    Abstract of annual meeting of the Surface Science of Japan　32　277-277　2012

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.32.0_277 　

  75. STM and XPS study of the Hydrogen reduction of the CeO2(111) thin film on Ru(0001)

    Syed Mohammad Fakruddin Shahed, Hasegawa Tomo, Sainoo Yasuyuki, Komeda Tadahiro

    Abstract of annual meeting of the Surface Science of Japan　32　165-165　2012

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.32.0_165 　

  76. Adsorption Structure and Spin Detection of TOV and TTV by Scanning Tunneling Microscopy

    Abstract of annual meeting of the Surface Science of Japan　32　43-43　2012

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.32.0_43 　

  77. Kondo resonance observation of a stable neutral pure organic radical molecule of 1,3,5-triphenyl-6-oxoverdazyl (TOV) adsorbed on Au(111)

    Liu Jie, Isshiki Hironari, Makinae Daichi, Katoh Keiichi, Yamashita Masahiro, Komeda Tadahiro

    Abstract of annual meeting of the Surface Science of Japan　32　44-44　2012

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.32.0_44 　

  78. 2E1412 Single-molecule structural analysis of tumor suppressor p53 using scanning probe microscopes(Proteins:Property II,Oral Presentation,The 50th Annual Meeting of the Biophysical Society of Japan)

    Takahashi Seiya, Sainoo Yasuyuki, Kashima Risa, Tokino Takashi, Komeda Tadahiro, Takahashi Satoshi, Kamagata Kiyoto

    Seibutsu Butsuri　52　S45-S46　2012

    Publisher: The Biophysical Society of Japan General Incorporated Association

    DOI： 10.2142/biophys.52.S45_5 　

  79. Multiple-decker phthalocyaninato Tb(III) single-molecule magnets and Y(III) complexes for next generation devices Peer-reviewed

    Keiichi Katoh, Hironari Isshiki, Tadahiro Komeda, Masahiro Yamashita

    COORDINATION CHEMISTRY REVIEWS　255　(17-18)　2124-2148　2011/09

    DOI： 10.1016/j.ccr.2011.02.024 　

    ISSN： 0010-8545

    eISSN： 1873-3840

  80. Coexistence and Interconversion of Di-sigma and pi-Bonded Ethylene on the Pt(111) and Pd(110) Surfaces Peer-reviewed

    Tomonari Okada, Yousoo Kim, Yasuyuki Sainoo, Tadahiro Komeda, Michael Trenary, Maki Kawai

    JOURNAL OF PHYSICAL CHEMISTRY LETTERS　2　(17)　2263-2266　2011/09

    DOI： 10.1021/jz200912a 　

    ISSN： 1948-7185

  81. Detection of Single Electron Spin by Using Scanning Tunneling Microscope (STM) Peer-reviewed

    Tadahiro Komeda

    顕微鏡　46　(1)　75-80　2011/09

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    6911

  82. Scanning Tunneling Microscope Study of Surface Morphology Variation of CeO2(111) with Changing Annealing Condition Peer-reviewed

    Syed Mohammad Fakruddin Shahed, Yasuyuki Sainoo, Tadahiro Komeda

    JAPANESE JOURNAL OF APPLIED PHYSICS　50　(8)　08LB05-4 pages　2011/08

    DOI： 10.1143/JJAP.50.08LB05 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  83. 同位体置換により解明された非弾性電子トンネル分光の選択則 Peer-reviewed

    岡林 則夫, Magnus PAULSSON, 上羽 弘, 今田 洋平, 米田 忠弘

    表面科学　32　(6)　374-380　2011/04

    DOI： 10.1380/jsssj.32.374 　

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    6912

  84. Observation and electric current control of a local spin in a single-molecule magnet Peer-reviewed

    Tadahiro Komeda, Hironari Isshiki, Jie Liu, Yan-Feng Zhang, Nicolas Lorente, Keiichi Katoh, Brian K. Breedlove, Masahiro Yamashita

    NATURE COMMUNICATIONS　2　217-223　2011/03

    DOI： 10.1038/ncomms1210 　

    ISSN： 2041-1723

  85. Metal-free phthalocyanine (H2Pc) molecule adsorbed on the Au(111) surface: formation of a wide domain along a single lattice direction Invited Peer-reviewed

    Tadahiro Komeda, Hironari Isshiki, Jie Liu

    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS　11　(5)　54602　2010/10

    DOI： 10.1088/1468-6996/11/5/054602 　

    ISSN： 1468-6996

  86. Identification of a deuterated alkanethiol inserted in a hydrogenated alkanethiol self-assembled monolayer by mapping of an inelastic tunneling signal Peer-reviewed

    Norio Okabayashi, Tadahiro Komeda

    REVIEW OF SCIENTIFIC INSTRUMENTS　81　(8)　84101-84104　2010/08

    DOI： 10.1063/1.3469777 　

    ISSN： 0034-6748

  87. Site Selective Inelastic Electron Tunneling Spectroscopy Probed by Isotope Labeling Peer-reviewed

    Norio Okabayashi, Magnus Paulsson, Hiromu Ueba, Youhei Konda, Tadahiro Komeda

    NANO LETTERS　10　(8)　2950-2955　2010/08

    DOI： 10.1021/nl1011323 　

    ISSN： 1530-6984

  88. Bis(phthalocyaninato)yttrium Grown on Au(111): Electronic Structure of a Single Molecule and the Stability of Two-dimensional Films Investigated by Scanning Tunneling Microscopy/Spectroscopy at 4.8 K Peer-reviewed

    Yanfeng Zhang, Pengfei Guan, Hironari Isshiki, Mingwei Chen, Masahiro Yamashita, Tadahiro Komeda

    NANO RESEARCH　3　(8)　604-611　2010/08

    DOI： 10.1007/s12274-010-0021-9 　

    ISSN： 1998-0124

  89. Low-Temperature Scanning Tunneling Microscopy Investigation of Tris(phthalocyaninato)yttrium Triple-Decker Molecules Deposited on Au(111) Peer-reviewed

    Hironari Isshiki, Jie Liu, Keiichi Katoh, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Shinya Takaishi, Tadahiro Komeda

    JAPANESE JOURNAL OF APPLIED PHYSICS　49　(8)　08LB11　2010/08

    DOI： 10.1143/JJAP.49.08LB11 　

    ISSN： 0021-4922

  90. Scanning Tunneling Microscopy Investigation of Tris(phthalocyaninato)yttrium Triple-Decker Molecules Deposited on Au(111) Peer-reviewed

    Hironari Isshiki, Jie Liu, Keiichi Katoh, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Shinya Takaishi, Tadahiro Komeda

    JOURNAL OF PHYSICAL CHEMISTRY C　114　(28)　12202-12206　2010/07

    DOI： 10.1021/jp101349v 　

    ISSN： 1932-7447

  91. Surface molphologies, electronic structures, and Kondo effect of lanthanide(III)-phthalocyanine molecules on Au(111) by using scanning tunneling microscopy and scanning tunneling spectroscopy, and bulk phase electron transport properties for next generati Invited Peer-reviewed

    Keiichi Katoh, Tadahiro Komeda, Masahiro Yamashita

    Dalton Transactions　2010/05

    DOI： 10.1039/b926121d 　

  92. Inelastic Tunneling Spectroscopy of Alkanethiol Molecules: High-Resolution Spectroscopy and Theoretical Simulations Peer-reviewed

    Norio Okabayashi, Magnus Paulsson, Hiromu Ueba, Youhei Konda, Tadahiro Komeda

    PHYSICAL REVIEW LETTERS　104　(7)　77801　2010/02

    DOI： 10.1103/PhysRevLett.104.077801 　

    ISSN： 0031-9007

  93. Surface morphologies, electronic structures, and Kondo effect of lanthanide(iii)-phthalocyanine molecules on Au(111) by using STM, STS and FET properties for next generation devices Peer-reviewed

    Keiichi Katoh, Tadahiro Komeda, Masahiro Yamashita

    Dalton Transactions　39　(20)　4708-4723　2010

    DOI： 10.1039/b926121d 　

    ISSN： 1477-9226 1477-9234

  94. Experimental and theoretical investigations on the epitaxial growth of 4,4(') stilbenedicarboxylic acid molecules on Au(111) Peer-reviewed

    Yan Feng Zhang, Yong Yang, Yoshiyuki Kawazoe, Tadahiro Komeda

    JOURNAL OF CHEMICAL PHYSICS　131　(17)　174106　2009/11

    DOI： 10.1063/1.3256288 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  95. Inelastic electron tunneling spectroscopy with a dilution refrigerator based scanning tunneling microscope Peer-reviewed

    Norio Okabayashi, Tadahiro Komeda

    MEASUREMENT SCIENCE AND TECHNOLOGY　20　(9)　095602-095609　2009/09

    DOI： 10.1088/0957-0233/20/9/095602 　

    ISSN： 0957-0233

    eISSN： 1361-6501

  96. A Low-Temperature Scanning Tunneling Microscope Investigation of a Nonplanar Dysprosium-Phthalocyanine Adsorption on Au(111) Peer-reviewed

    Yan-Feng Zhang, Hironari Isshiki, Keiichi Katoh, Yusuke Yoshida, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Takashi Kajiwara, Shinya Takaishi, Tadahiro Komeda

    JOURNAL OF PHYSICAL CHEMISTRY C　113　(32)　14407-14410　2009/08

    DOI： 10.1021/jp9045935 　

    ISSN： 1932-7447

  97. Atomically resolved Larmor frequency detection on Si(111)-7x7 oxide surface Peer-reviewed

    Yasuyuki Sainoo, Hironari Isshiki, Syed Mohammad Fakruddin Shahed, Tsuyoshi Takaoka, Tadahiro Komeda

    APPLIED PHYSICS LETTERS　95　(8)　082504　2009/08

    DOI： 10.1063/1.3204688 　

    ISSN： 0003-6951

    eISSN： 1077-3118

  98. Direct observation of lanthanide(III)-phthalocyanine molecules on Au(111) by using scanning tunneling microscopy and scanning tunneling spectroscopy and thin-film field-effect transistor properties of Tb(III)- and Dy(III)-phthalocyanine molecules Peer-reviewed

    Keiichi Katoh, Yusuke Yoshida, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Takashi Kajiwara, Shinya Takaishi, Naoto Ishikawa, Hironari Isshiki, Feng Zhang Yan, Tadahiro Komeda, Masakazu Yamagishi, Jun Takeya

    Journal of the American Chemical Society　131　(29)　9967-9976　2009/07/29

    DOI： 10.1021/ja902349t 　

    ISSN： 0002-7863

  99. Surface Chemical Reaction Enhanced by Adsorbate-Electron Interaction Peer-reviewed

    Syed Mohammad Fakruddin Shahed. Takeshi Matsuhashi, Yasuyuki Sainoo, Tadahiro Komeda

    表面科学　30　(7)　386-390　2009/07

    DOI： 10.1380/jsssj.30.386 　

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    5864

  100. カーボンナノチューブの自己組織化によるストライプ構造形成 Peer-reviewed

    掛札洋平, 米田忠弘

    表面科学　30　(9)　503-506　2009/07

    DOI： 10.1380/jsssj.30.503 　

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    5866

  101. MPc2分子（M＝Tb3+, Dy3+, and Y3+；Pc＝フタロシアニン）の極低温STM/STS観察 Peer-reviewed

    一色弘成, 張 イエンフォン, 米田忠弘, 吉田祐輔, 加藤恵一, 宮坂等, 山下正廣

    表面科学　30　(9)　507-511　2009/07

    Publisher: Surface Science Society Japan

    DOI： 10.1380/jsssj.30.507 　

    ISSN： 0388-5321

    eISSN： 1881-4743

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    5865

  102. Electron Spin Resonance Measurement with Atomic Scale Resolution using Scanning Tunneling Microscope

    KOMEDA Tadahiro

    J. Surf. Sci. Soc. Jpn.　30　(6)　325-331　2009/06/10

    Publisher: The Surface Science Society of Japan

    DOI： 10.1380/jsssj.30.325 　

    ISSN： 0388-5321

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    We discuss the detection of a single spin by monitoring the tunneling current of the scanning tunneling microscope in the presence of a magnetic field. We have measured high frequency signals in the tunneling current of scanning tunneling microscopy for a submonolayer oxide thin film on the Si(111)-7×7 surface. We demonstrate that the signal is related to the Larmor precession of the electron spin associated with a dangling bond. The detected precession frequency possesses a broad distribution (line-width is comparable with that observed by conventional electron spin resonance) and a split near the maxima, both of which are attributed to the inhomogeneity of the g factor of a single spin. With site-specific measurement, we found that the spin signal was detected on the bright Si adatom in which oxygen atoms occupy the backbonds and weakened the metallic nature of the Si(111)-7×7 surface. The measured Larmor frequency corresponded to g∼2.00. On the other hand, no peak was detected on the dark adatom that is tied with an oxygen atom at the on-top site. This is due to the disappearance of the Si dangling bond through the chemical bond formation with the oxygen atom.

  103. Low-Temperature Scanning Tunneling Microscopy Investigation of Bis(phthalocyaninato)yttrium Growth on Au(111): From Individual Molecules to Two-Dimensional Domains Peer-reviewed

    Yan Feng Zhang, Hironari Isshiki, Keiichi Katoh, Yusuke Yoshida, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Takashi Kajiwara, Shinya Takaishi, Tadahiro Komeda

    JOURNAL OF PHYSICAL CHEMISTRY C　113　(22)　9826-9830　2009/06

    DOI： 10.1021/jp902410q 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  104. Characteristic energy band values and electron attenuation length of a chemical-vapor-deposition diamond (001)2×1 surface

    S. Kono, T. Saitou, H. Kawata, T. Goto, Y. Kakefuda, T. Komeda

    Surface Science　603　(6)　860-866　2009/03

    Publisher: Elsevier BV

    DOI： 10.1016/j.susc.2009.01.033 　

    ISSN： 0039-6028

  105. 非弾性電子トンネル分光による自己組織化膜中の同位体識別 Peer-reviewed

    岡林 則夫, 米田 忠弘

    表面科学　30　(5)　293-295　2009

    Publisher:

    DOI： 10.1380/jsssj.30.293 　

    ISSN： 0388-5321

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    5861

  106. Study of Friction of CO Molecule Adsorbed on Pt(997) Surface Peer-reviewed

    T. Takaoka, T. Komeda

    JOURNAL OF PHYSICAL CHEMISTRY C　112　(50)　19969-19978　2008/12

    DOI： 10.1021/jp802823a 　

    ISSN： 1932-7447

  107. Chiral vector determination of carbon nanotubes by observation of interference patterns near the end cap

    Masayuki Furuhashi, Tadahiro Komeda

    Physical Review Letters　101　(18)　185503　2008/10/31

    DOI： 10.1103/PhysRevLett.101.185503 　

    ISSN： 0031-9007 1079-7114

  108. Synthesis and conductance measurement of periodic arrays of gold nanoparticles

    Y. Kakefuda, K. Narita, T. Komeda, S. Yoshimoto, S. Hasegawa

    Applied Physics Letters　93　(16)　163103　2008/10/20

    Publisher: AIP Publishing

    DOI： 10.1063/1.3001938 　

    ISSN： 0003-6951

    eISSN： 1077-3118

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    We report a formation method and an electrical characterization of aligned arrays of Au nanoparticles (∼20–40 nm). We synthesized the structure by immersing a substrate vertically into a solvent with nanoparticle and letting the solvent evaporate. The periodicity of the arrays has been controlled in 10–40 μm range by tuning the evaporation rate of solvent. The resistivity shows a drastic decrease (∼10−4) when annealed at ∼170 °C. While it is considerably due to a breakdown of ligands surrounding the Au particles, the large change in conductivity should be used for sensors to examine the interface molecules between Au nanoparticles.

  109. Erratum: Direct observation of molecular orbital at carbon nanotube end (Japanese Journal of Applied Physics (2007) 46 (L161))

    Masayuki Furuhashi, Tadahiro Komeda

    Japanese Journal of Applied Physics　47　(6)　4851　2008/06/13

    DOI： 10.1143/JJAP.47.4851 　

    ISSN： 0021-4922 1347-4065

  110. Inelastic electron tunneling spectroscopy of an alkanethiol self-assembled monolayer using scanning tunneling microscopy Peer-reviewed

    Norio Okabayashi, Youhei Konda, Tadahiro Komeda

    PHYSICAL REVIEW LETTERS　100　(21)　217801　2008/05

    DOI： 10.1103/PhysRevLett.100.217801 　

    ISSN： 0031-9007

  111. Distribution of frequencies of a single precessing spin detected by scanning tunneling microscope Peer-reviewed

    Tadahiro Komeda, Yishay Manassen

    APPLIED PHYSICS LETTERS　92　(21)　212506　2008/05

    DOI： 10.1063/1.2937940 　

    ISSN： 0003-6951

  112. Molecule-precision cavity formation in molecular layer using scanning tunneling microscope lithography Peer-reviewed

    Tatsuro Osada, Na Zhu, YanFeng Zhang, Tadahiro Komeda

    JOURNAL OF PHYSICAL CHEMISTRY C　112　(10)　3835-3839　2008/03

    DOI： 10.1021/jp710538u 　

    ISSN： 1932-7447

  113. Estimation of friction of a single chemisorbed molecule on a surface using incident atoms Peer-reviewed

    T. Takaoka, T. Komeda

    PHYSICAL REVIEW LETTERS　100　(4)　046104　2008/02

    DOI： 10.1103/PhysRevLett.100.046104 　

    ISSN： 0031-9007

  114. Programming of a Mn-coordinated 4-4 '-biphenyl dicarboxylic acid nanosystem on Au(111) and investigation of the non-covalent binding of C60 molecules Peer-reviewed

    Yan-Feng Zhang, Na Zhu, T. Komeda

    SURFACE SCIENCE　602　(2)　614-619　2008/01

    DOI： 10.1016/j.susc.2007.11.018 　

    ISSN： 0039-6028

  115. Mn-coordinated stillbenedicarboxylic ligand supramolecule regulated by the herringbone reconstruction of Au(111) Peer-reviewed

    Yan-Feng Zhang, Na Zhu, T. Komeda

    JOURNAL OF PHYSICAL CHEMISTRY C　111　(45)　16946-16950　2007/11

    DOI： 10.1021/jp074925d 　

    ISSN： 1932-7447

  116. Supramolecular assembly of biphenyl dicarboxylic acid on Au(111) Peer-reviewed

    N. Zhu, T. Osada, T. Komeda

    SURFACE SCIENCE　601　(8)　1789-1794　2007/04

    DOI： 10.1016/j.susc.2007.02.003 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  117. Direct observation of molecular orbital at carbon nanotube end Peer-reviewed

    Masayuki Furuhashi, Tadahiro Komeda

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS　46　(8-11)　L161-L163　2007/03

    DOI： 10.1143/JJAP.46.L161 　

    ISSN： 0021-4922

  118. Penetration of ammonia molecule into ice film; activation energy analysis using Xe molecular beam irradiation Peer-reviewed

    M. Inamura, T. Takaoka, T. Komeda

    SURFACE SCIENCE　601　(4)　1072-1078　2007/02

    DOI： 10.1016/j.susc.2006.11.050 　

    ISSN： 0039-6028

  119. Collision-induced migration of CO on Pt(997) surface Peer-reviewed

    T. Takaoka, T. Komeda

    SURFACE SCIENCE　601　(4)　1090-1100　2007/02

    DOI： 10.1016/j.susc.2006.11.060 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  120. Observation of Ordered Arrays of Adsorbed Lysozyme by Scanning Tunneling Microscopy

    Yamaguchi Takahiro, Komeda Tadahiro

    Jpn J Appl Phys　45　(3)　2349-2352　2006/03/15

    Publisher: INSTITUTE OF PURE AND APPLIED PHYSICS

    DOI： 10.1143/JJAP.45.2349 　

    ISSN： 0021-4922

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    The lysozyme film formed on a Au(111) surface was observed at a molecular resolution by scanning tunneling microscopy (STM). The flat domains of this film was obtained by dipping the Au(111) surface into lysozyme solution (4 μg/ml, $\text{pH}=4.5$ and room temperature) for 4 h. We observed a clear image of the stripes formed by lysozyme molecules. Two types of ordered stripes were confirmed. One was a simple stripe with a gap of 4.6 nm, and the other was a paired stripe with the periodicity of the pair is 6.2 nm. The latter case could be explained with a periodic bond chain model of the (110) surface of a lysozyme crystal.

  121. Excitation of molecular vibrational modes with inelastic scanning tunneling microscopy processes: Examination through action spectra of cis-2-butene on Pd(110) Peer-reviewed

    Y Sainoo, Y Kim, T Okawa, T Komeda, H Shigekawa, M Kawai

    PHYSICAL REVIEW LETTERS　95　(24)　246102　2005/12

    DOI： 10.1103/PhysRevLett.95.246102 　

    ISSN： 0031-9007

    eISSN： 1079-7114

  122. Chemical identification and manipulation of molecules by vibrational excitation via inelastic tunneling process with scanning tunneling microscopy

    Tadahiro Komeda

    Progress in Surface Science　78　(2)　41-85　2005/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.progsurf.2005.05.001 　

    ISSN： 0079-6816

  123. Vibration spectroscopy of a single molecule using tunneling electrons

    KOMEDA Tadahiro

    Denshi kenbikyo　39　(3)　156-161　2004/11/30

    Publisher: The Japanese Society of Microscopy

    DOI： 10.11410/kenbikyo2004.39.156 　

    ISSN： 1349-0958

  124. Ammonia adsorption on and diffusion into thin ice films grown on Pt(111) Peer-reviewed

    T Takaoka, M Inamura, S Yanagimachi, Kusunoki, I, T Komeda

    JOURNAL OF CHEMICAL PHYSICS　121　(9)　4331-4338　2004/09

    DOI： 10.1063/1.1775781 　

    ISSN： 0021-9606

  125. Adsorption and Diffusion of Ammonia on Ice/Pt(111) Surface

    TAKAOKA Tsuyoshi, INAMURA Miki, YANAGIMACHI Satoshi, KUSUNOKI Isao, KOMEDA Tadahiro

    J. Surf. Sci. Soc. Jpn.　25　(8)　491-498　2004/08/10

    Publisher: The Surface Science Society of Japan

    DOI： 10.1380/jsssj.25.491 　

    ISSN： 0388-5321

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    Adsorption and diffusion of ammonia on an ice/Pt(111) surface were studied using Fourier transform infrared spectroscopy (FTIR) and thermal desorption spectroscopy (TDS). After exposing the crystalline ice film to ammonia molecules at 45 K, we have detected an intriguing feature at 1470 cm−1 in the FTIR spectra. This feature is derived from the ammonia adsorption on the ice with a characteristic structure which appears in thin film region. The peak intensity decreases gradually as the thickness of the substrate ice increases. In addition, we have detected a feature at 1260 cm−1 that appears after flashing the film to 113 K. The feature corresponds to the ammonia molecules which penetrate the ice surface and reach the ice/Pt(111) interface. Intriguingly, the intensity of this feature decreases with the ice thickness and there is a linear relation of the peak intensity of the features at 1470 cm−1 and 1260 cm−1. We propose a model that the solubility of the ammonia molecules is much higher for the thin ice film, whose structure is deformed from the ideal ice due to the presence of the metal substrate, than that for the ideal ice.

  126. 走査型トンネル顕微鏡を用いた非弾性トンネル分光による局所振動計測 Peer-reviewed

    米田忠弘, 川合眞紀

    固体物理　39　(8)　487-496　2004/08

    Publisher:

    ISSN： 0454-4544

  127. Single-molecule reactions and spectroscopy via vibrational excitation Peer-reviewed

    Maki Kawai, Tadahiro Komeda, Yousoo Kim, Yasuyuki Sainoo, Satoshi Katano

    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences　362　(1819)　1163-1171　2004/06/15

    Publisher: Royal Society

    DOI： 10.1098/rsta.2004.1369 　

    ISSN： 1364-503X

  128. Inelastic tunneling spectroscopy using scanning tunneling microscopy on trans-2-butene molecule: Spectroscopy and mapping of vibrational feature Peer-reviewed

    Y Sainoo, Y Kim, T Komeda, M Kawai

    JOURNAL OF CHEMICAL PHYSICS　120　(16)　7249-7251　2004/04

    DOI： 10.1063/1.1710863 　

    ISSN： 0021-9606

    eISSN： 1089-7690

  129. Local chemical reaction of benzene on Cu(110) via STM-induced excitation Peer-reviewed

    T Komeda, Y Kim, Y Fujita, Y Sainoo, M Kawai

    JOURNAL OF CHEMICAL PHYSICS　120　(11)　5347-5352　2004/03

    DOI： 10.1063/1.1647044 　

    ISSN： 0021-9606

  130. Mode-selective control of single-molecule dynamics on a metal surface

    Kim YS, Matsumoto C, Okawa T, Sainoo Y, Komeda T, Kawai M

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 227: U847-U847 274-COLL Part 1, MAR 28 2004　2004

  131. Tunneling Electron Induced Chemical Reaction of Benzene Molecule on Cu(110)

    FUJITA Yuko, KIM Yousoo, KOMEDA Tadahiro, KAWAI Maki

    J. Surf. Sci. Soc. Jpn.　24　(9)　568-572　2003/09/10

    Publisher: The Surface Science Society of Japan

    DOI： 10.1380/jsssj.24.568 　

    ISSN： 0388-5321

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    We have investigated the chemical reaction of benzene molecule adsorbed on Cu(110) surface induced by the injection of tunneling electrons. The bonding site of the benzene molecule is identified at the hollow site of the Cu(110). The height of the benzene molecule increased by 40% in case tunneling electrons with the energy of 2−5 eV (sample bias is positive) were dosed, which indicates chemical reaction occurs on the benzene molecule in this process. STM-IETS measurement on the benzene molecule before and after the chemical reaction shows a clear difference between these two; ν(C-H) mode is observed only for the molecules after the reaction together with the confirmation of the isotope effect for the vibrational energy. This is interpreted that the dehydrogenation occurs in the benzene molecule by the injection of the tunneling electrons, which changes the bonding configuration of the benzene molecule from flat to non-flat to the surface. The reaction probability shows a sharp rise at the sample bias voltage of 2.4 V that saturates at 3.0 V. The rise is followed by another sharp rise at the voltage of 4.4 V. The current dependence on the reaction probability indicates that the reaction is the one-electron process. We propose a model that the dehydrogenation and chemical reaction of the benzene molecule is induced by a temporal trapping of the tunneling electron at the unoccupied state formed by the π orbitals of the C atoms of the benzene ring, which is not directly related to the C-H bonding broken in the process.

  132. Geometrical characterization of pyrimidine base molecules adsorbed on Cu(110) surfaces: XPS and NEXAFS studies Peer-reviewed

    M Furukawa, H Fujisawa, S Katano, H Ogasawara, Y Kim, T Komeda, A Nilsson, M Kawai

    SURFACE SCIENCE　532　261-266　2003/06

    DOI： 10.1016/S0039-6028(03)00464-3 　

    ISSN： 0039-6028

  133. Observation of cis-2-butene molecule on Pd(110) by cryogenic STM: site determination using tunneling-current-induced rotation Peer-reviewed

    Y Sainoo, Y Kim, T Komeda, M Kawai, H Shigekawa

    SURFACE SCIENCE　536　(1-3)　L403-L407　2003/06

    DOI： 10.1016/S0039-6028(03)00564-8 　

    ISSN： 0039-6028

  134. Techniques for STM-IETS Measurement Peer-reviewed

    KOMEDA,Tadahiro, KIM,Yousoo, SAINOO,Yasuyuki, SHIGEKAWA,Hidemi, KAWAI,Maki

    Journal of the Surface Science Society of Japan　24　(5)　313-317　2003/05

    Publisher: 日本表面科学会

    ISSN： 0388-5321

  135. Chemistry of single molecules at surfaces Peer-reviewed

    M Kawai, T Komeda, Y Kim, Y Sainoo

    SCANNING TUNNELING MICROSCOPY/SPECTROSCOPY AND RELATED TECHNIQUES　696　136-143　2003

    ISSN： 0094-243X

  136. Characteristic configuration of cis-2-butene molecule on Pd(110) determined by scanning tunneling microscopy Peer-reviewed

    T. Komeda, H. Fukidome, Y. Kim, T. Komeda, H. Shigekawa, M. Kawai

    Jpn. J. Appl. Phys.　41　(7)　4972-4976　2002/10

    Publisher: The Japan Society of Applied Physics

    DOI： 10.1143/JJAP.41.4976 　

    ISSN： 0021-4922

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    Adsorption of cis-2-butene molecules on the Pd (110) surface was studied by scanning tunneling microscopy (STM) at 4.7 K for the first time. In contrast to the fact in the previous work that trans-2-butene molecules are adsorbed at the on-top site of the Pd(110) surface with its C$=$C double bond being almost parallel to the $[1\bar{1}0]$ axis, cis-2-butene molecules were found to be adsorbed slightly off the on-top site. In addition, the C$=$C bond was not parallel to the $[1\bar{1}0]$ axis, but to four directions equivalent to the structure of the Pd(110) surface. Furthermore, at high bias voltages for the STM measurement, the cis-2-butene molecule became unstable and moved in two different manners around the palladium atom to which the molecule was bonded, suggesting the existence of two different mechanisms underlying the motion on the surface.

  137. Single-molecule reaction and characterization by vibrational excitation Peer-reviewed

    Y Kim, T Komeda, M Kawai

    PHYSICAL REVIEW LETTERS　89　(12)　2002/09

    DOI： 10.1103/PhysRevLett.89.126104 　

    ISSN： 0031-9007

    eISSN： 1079-7114

  138. Scanning Tunneling Microscopy Study of Water Molecules on Pd(110) at Cryogenic Temperature Peer-reviewed

    Tadahiro Komeda, Hirokazu Fukidome, Yousoo Kim, Maki Kawai, Yasuyuki Sainoo, Hidemi Shigekawa

    Japanese Journal of Applied Physics　41　(Part 1, No. 7B)　4932-4935　2002/07/30

    Publisher: IOP Publishing

    DOI： 10.1143/jjap.41.4932 　

    ISSN： 0021-4922

    eISSN： 1347-4065

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    We show scanning tunneling microscopy (STM) images of water molecules on Pd(110) at a cryogenic temperature of 4.7 K which enables the observation of isolated water molecules. We observe water-induced features in the STM images in a low-coverage region (${\sim}\,0.02$ ML), which can be classified in terms of height; namely, (A) 0.15 Å, (B) 0.3 Å and (C) 0.55 Å, observed at $V_{\text{s } }=-100$ mV. In a high-coverage region, feature C dominates and forms a local c($2\times 2$) structure. Since the ordered structure is identical with the previously reported superstructure of bilayer water on Pd(110), feature C should correspond to a tetramer of water molecules, a unit of bilayer water. Feature A is located on the Pd(110) row. Since feature A is the smallest one, we consider that this corresponds to the monomer of the water molecule whose existence has been observed previously at temperatures below 10 K by electron energy loss spectroscopy (EELS) measurement.

  139. Single-molecule imaging and, repositioning of 1,3-butadiene adsorbed on Pd(110) surface Peer-reviewed

    Y Kim, T Komeda, M Kawai

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS　41　(7B)　4924-4927　2002/07

    DOI： 10.1143/JJAP.41.4924 　

    ISSN： 0021-4922

  140. Characteristic Configuration of Cis-2-butene Molecule on Pd(110) Determined by Scanning Thnneling Microscopy Peer-reviewed

    SAINOO,Yasuyuki, KIM,Yousoo, FUKIDOME,Hirokazu, KOMEDA,Tadahiro, KAWAI,Maki, SHIGEKAWA,Hidemi

    Japanese journal of applied physics. Pt. 1, Regular papers & short notes　41　(7)　4976-4979　2002/07

    Publisher: The Japan Society of Applied Physics

    ISSN： 0021-4922

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    Adsorption of cis-2-butene molecules on the Pd (110) surface was studied by scanning tunneling microscopy (STM) at 4.7 K for the first time. In contrast to the fact in the previous work that trans-2-butene molecules are adsorbed at the on-top site of the Pd(110) surface with its C=C double bond being almost parallel to the [11^^-0] axis, cis-2-butene molecules were found to be adsorbed slightly off the on-top site. In addition, the C=C bond was not parallel to the [11^^-0] axis, but to four directions equivalent to the structure of the Pd(l10) surface. Furthermore, at high bias voltages for the SIM measurement, the cis-2-butene molecule became unstable and moved in two different manners around the palladium atom to which the molecule was bonded, suggesting the existence of two different mechanisms underlying the motion on the surface.

  141. Single-molecule surface reaction by tunneling electrons Peer-reviewed

    Y Kim, T Komeda, M Kawai

    SURFACE SCIENCE　502　7-11　2002/04

    ISSN： 0039-6028

  142. Lateral motion of adsorbate induced by vibrational mode excitation with inelastic tunneling electron Peer-reviewed

    T Komeda, Y Kim, M Kawai

    SURFACE SCIENCE　502　12-17　2002/04

    ISSN： 0039-6028

  143. Adsorption structure of 1,3-butadiene on Pd(110)

    S. Katano, S. Ichihara, H. Ogasawara, H. Kato, T. Komeda, M. Kawai, K. Domen

    Surface Science　502　(164)　164-20020100　2002/04

    DOI： 10.1016/S0039-6028(01)01928-8 　

    ISSN： 0039-6028

  144. Lateral hopping of molecules induced by excitation of internal vibration mode Peer-reviewed

    T. Komeda, Y. Kim, Maki Kawai, B. N.J. Persson, H. Ueba

    Science　295　(5562)　2055-2058　2002/03/15

    DOI： 10.1126/science.1069016 　

    ISSN： 0036-8075

  145. Narrow Photoemission Peak at the Fermi Level in [Formula presented]

    T. Susaki, T. Komeda, Maki Kawai

    Physical Review Letters　88　(18)　4　2002

    DOI： 10.1103/PhysRevLett.88.187602 　

    ISSN： 1079-7114 0031-9007

  146. Inelastic Tunneling Spectroscopy Water and Hydrocarbon Molecules on Metal Surfaces Peer-reviewed

    H. Fukidome, Y. Kim, T. Komeda, M. Kawai

    Proceedings of ICSPM9　2001/12

  147. Tunneling Current-Induced Motion of a Single Molecule on Pd(110) Peer-reviewed

    Y. Sainoo, Y. Kim, H. Fukidome, T. Komeda, M. Kawai, H. Shigekawa

    Proceedings of ICSPM9　2001/12

  148. Scanning Tunneling Microscopy Observation of CO on Pd(110) at Cryogenic Temperature; Imaging Mechanism and Novel One-Dimensional Array Formation Peer-reviewed

    Tadahiro Komeda, Yousoo Kim, Maki Kawai

    Japanese Journal of Applied Physics　40　(6S)　4403-4403　2001/06/01

    DOI： 10.1143/jjap.40.4403 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  149. Investigation of 1D chain formation of CO on Pd(1 1 0) by low temperature scanning tunneling microscope Peer-reviewed

    Yousoo Kim, Hiroyuki S Kato, Tadahiro Komeda, Maki Kawai

    Surface Science　482-485　60-65　2001/06

    Publisher: Elsevier BV

    DOI： 10.1016/s0039-6028(00)00997-3 　

    ISSN： 0039-6028

  150. In Situ Study of Molecular Doping of Chlorine on MoS2 Field Effect Transistor Device in Ultrahigh Vacuum Conditions Peer-reviewed

    Nguyen Tat Trung, Mohammad Ikram Hossain, Md Iftekharul Alam, Atsushi Ando, Osamu Kitakami, Nobuaki Kikuchi, Tsuyoshi Takaoka, Yasuyuki Sainoo, Ryuichi Arafune, Tadahiro Komeda

    ACS Omega　2000/10

  151. Orientation and symmetry of ethylene on Pd(110): A combined HREELS and NEXAFS study Peer-reviewed

    H. Okuyama, S. Ichihara, H. Ogasawara, H. Kato, T. Komeda, M. Kawai, J. Yoshinobu

    Journal of Chemical Physics　112　(13)　5948-5956　2000

    DOI： 10.1063/1.481168 　

  152. In-situ AFM Observation of Dissolution Process of Si(111) in Oxygen-FreeWater at Room Temperature Peer-reviewed

    H. Fukidome, M. Matsumura, K. Namba, T. Komeda, Y. Nishioka

    Electrochem. Solid-State Lett.　2　393-394　1999/08

    DOI： 10.1149/1.1390848 　

  153. Force Microscopy Study of SrTiO3(001) Surfaces with Single Atomic-Layer Steps

    Koichiro Iwahori, ShunjiWatanabe Komeda, MakiKawai Saito, Yuji Kuwahara, Masakazu Aono

    Japanese Journal of Applied Physics　38　(6S)　3946-3946　1999/06/01

    Publisher: IOP Publishing

    DOI： 10.1143/jjap.38.3946 　

    ISSN： 0021-4922

    eISSN： 1347-4065

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    An atomically flat SrTiO3(001) surface was successfully obtained by combining ultrasonic agitation and subsequent annealing at 1000°C in air. The topographic images taken using an atomic force microscope revealed that the surface was composed of clear atomic-steps and atomically smooth terraces. The steps were 0.2 nm in height corresponding to half of the unit cell height of SrTiO3, or the single atomic-layer height. The terraces were categorized into two types; wide and narrow terraces appear alternately. Surface composition analyzed by coaxial impact collision ion scattering spectroscopy indicated that the topmost surface was covered by domains of the SrO and TiO2 layers, where the latter domain was dominant. The result suggests that the topmost surface of the narrow terrace was terminated by SrO and the wide terrace by TiO2. This was further examined by the use of a friction force microscopy technique with which we were able to distinguish the different surface terminations.

  154. Electric properties of nanoscale contacts on Si(111) surfaces

    R. Hasunuma, T. Komeda, H. Tokumoto

    Applied Surface Science　130-132　84-89　1998/06

    Publisher: Elsevier BV

    DOI： 10.1016/s0169-4332(98)00030-0 　

    ISSN： 0169-4332

  155. Atomic structure of segregated boron on Si(001) surface; scanning tunneling microscopy and cluster model calculation study

    T Komeda, Y Nishioka

    Surface Science　405　(1)　38-45　1998/05

    Publisher: Elsevier BV

    DOI： 10.1016/s0039-6028(97)01094-7 　

    ISSN： 0039-6028

  156. Octadecyltrichlorosilane self-assembled-monolayer islands as a self-patterned-mask for HF etching of SiO2 on Si

    T. Komeda, K. Namba, Y. Nishioka

    Journal of Vacuum Science &amp; Technology A: Vacuum, Surfaces, and Films　16　(3)　1680-1685　1998/05/01

    Publisher: American Vacuum Society

    DOI： 10.1116/1.581142 　

    ISSN： 0734-2101

    eISSN： 1520-8559

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    Octadecyltrichlorosilane (OTS), self-assembled-monolayer (SAM) grown on SiO2 in the submonolayer region is investigated by atomic force microscope (AFM), which is further applied to SiO2 characterizations technique. OTS-SAM forms characteristic dendrite-shaped islands in its submonolayer region, whose shape and size significantly depend on the surface roughness of SiO2 formed at different temperatures in the range of 700–1100 °C. Moreover, OTS-SAM islands have practical usefulness as a self-patterned-mask for HF etching. When an oxidized Si wafer covered by OTS-SAM islands is dipped into HF, SiO2 in the area uncovered by the islands is selectively removed. This technique is successfully applied for the precise SiO2 thickness measurement in ultrathin (&amp;lt;50 Å) regions by AFM. In addition, this technique enables a simultaneous observation of the morphologies of SiO2 surface and SiO2/Si interface. The result shows, for the first time, the continuity of the steps on SiO2 surface and SiO2/Si interface, indicating no lateral step motion of Si (111) surface during oxidation.

  157. Indentation effects on atom manipulation on Si(111) surfaces investigated by STM

    R. Hasunuma, T. Komeda, H. Tokumoto

    Applied Physics A: Materials Science &amp; Processing　66　(7)　S689-S693　1998/03/01

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s003390051223 　

    ISSN： 0947-8396

    eISSN： 1432-0630

  158. STM and Cluster Calculation Study of Segregated B on Si(001) Surface.

    Komeda Tadahiro, Nishioka Yasushiro

    Japanese Journal of Applied Physics　37　(3)　1188-1192　1998

    Publisher: The Japan Society of Applied Physics

    DOI： 10.1143/JJAP.37.1188 　

    ISSN： 0021-4922

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    The atomic configuration of B atoms on the Si(001)-2× 1 surface which are segregated on the top surface is investigated with scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) whose data are further analyzed by comparison with a cluster model calculation with a local density approximation method. Unoccupied state STM images show characteristic paired protrusions which are located on both sides of the Si dimer rows in a symmetrical manner. They can be observed only at a higher sample bias (>1.4 V) and are enhanced at ~ 2.0 V, which is further confirmed quantitatively by STS measurements. The cluster calculation shows that a model where a B atom is bridging two neighboring Si dimers in the same dimer row can reproduce the STM and STS observations.

  159. Simultaneous Observation of SiO2 Surface and SiO2/Si Interface Using Self-Assembled-Monolayer Island.

    Komeda Tadahiro, Namba Kenji, Nishioka Yasushiro

    Japanese Journal of Applied Physics　37　(2)　L214-L217　1998

    Publisher: The Japan Society of Applied Physics

    DOI： 10.1143/JJAP.37.L214 　

    ISSN： 0021-4922

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    Steps on SiO2 surface and in SiO2/Si interface, which remain on the surface after the formation of SiO2 on atomically flat Si(111) surface, are simultaneously observed with a novel use of self-assembled-monolayer (SAM) islands. After the formation of octadecyltrichlorosilane (OTS) SAM islands on SiO2, SiO2 layers in the area which are not covered by OTS-SAM are completely removed by hydrofluoric acid (HF) to expose SiO2/Si interface, followed by atomic-force-microscopy (AFM) observation. OTS-SAM islands trace the morphology of SiO2 surface underneath, whose structure is preserved even after being dipped into HF. The results indicate that the steps on SiO2 and in the interface of SiO2/Si show no lateral shift, which suggests no step-flow during oxidation for stress relief.

  160. Atomic configuration of segregated B on Si(001) surface

    T. Komeda, Y. Nishioka

    Applied Physics Letters　71　(16)　2277-2279　1997/10/20

    Publisher: AIP Publishing

    DOI： 10.1063/1.120049 　

    ISSN： 0003-6951

    eISSN： 1077-3118

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    The atomic configurations of segregated B atoms on a highly B-doped Si(001) surface is investigated with scanning tunneling microscopy (STM) observation and first-principle cluster calculation, on which characteristic comb-shape step structures are observed. The characteristic features in the STM image are (1) dark regions in the occupied state, and (2) paired protrusions in the unoccupied state. The calculation shows that models of a B dimer on the top surface and B atoms bonded to two neighboring Si atoms in a dimer row can reproduce STM images well for (1) and (2), respectively.

  161. Layer-by-layer atomic manipulation on Si(111)-7 × 7 surface: surface structures and staircase conductance variation with atom removal

    T. Komeda, R. Hasunuma, H. Mukaida, H. Tokumoto

    Surface Science　386　(1-3)　149-153　1997/10

    Publisher: Elsevier BV

    DOI： 10.1016/s0039-6028(97)00323-3 　

    ISSN： 0039-6028

  162. Formation of Si nanowire by atomic manipulation with a high temperature scanning tunneling microscope

    R. Hasunuma, T. Komeda, H. Mukaida, H. Tokumoto

    Journal of Vacuum Science &amp; Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena　15　(4)　1437-1441　1997/07/01

    Publisher: American Vacuum Society

    DOI： 10.1116/1.589468 　

    ISSN： 1071-1023

    eISSN： 1520-8567

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    The formation of Si nanowire during indentation of the scanning tunneling microscope tip onto the Si(111) surface was investigated by changing the sample bias, the temperature, and the tip retraction speed. The wire length at room temperature is in the order of 1 nm, however, the wire was elongated remarkably with either increasing temperature or bias voltage while keeping a positive sample bias. The wire was also elongated when the tip speed was decreased. The typical length was ∼14 nm at 481 °C, +2.0 V and 320 nm/s. In order to explain these results, we proposed a simple model for the wire formation by taking into account the surface diffusion and electromigration effects.

  163. Self-assembled-monolayer film islands as a self-patterned-mask for SiO2 thickness measurement with atomic force microscopy

    T. Komeda, K. Namba, Y. Nishioka

    Applied Physics Letters　70　(25)　3398-3400　1997/06/23

    Publisher: AIP Publishing

    DOI： 10.1063/1.119183 　

    ISSN： 0003-6951

    eISSN： 1077-3118

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    A novel method for measuring ultrathin (2–12 nm) SiO2 film thickness is discussed. The process consists of: (1) formation of octadecyltrichlorosilane (OTS) self-assembled-monolayer (SAM) islands on SiO2 of which thickness to be measured, (2) removal of the SiO2 layers not covered by the OTS-SAM islands, and (3) measurement of the height difference between the etched and nonetched areas by atomic-force-microscopy. The OTS film is good resist against HF and its islands can be regarded as self-patterned-mask. Practical usefulness is demonstrated not only by the compatibility of the measured values but also by the short measurement period resulting from the directness of the method.

  164. Nanoscale Indentation on Si(111) Surfaces with Scanning Tunneling Microscope

    Ryu Hasunuma, Tadahiro Komeda Tokumoto

    Japanese Journal of Applied Physics　36　(6S)　3827-3827　1997/06/01

    Publisher: IOP Publishing

    DOI： 10.1143/jjap.36.3827 　

    ISSN： 0021-4922

    eISSN： 1347-4065

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    We have investigated the mechanism of Si atom removal by measuring the current during formation of a point contact between the W tip of a scanning tunneling microscope (STM) and the Si(111)-7×7 surface. The stepwise drops observed in the current during tip retraction may be attributed to the reduction of the contact area in an atom-by-atom manner. Based on the estimation of the contact size, it was concluded that the adatoms were removed by chemical adhesion of the Si atoms with the W tip. The chemical adhesion was assisted by the mechanical force applied to the Si surface, contact potential and current induced local heating. A trilayer was removed by field evaporation with the assistance of electromigration on the Si surface.

  165. Comb-shape step formation on Si(001)-2 × 1 surface

    Tadahiro Komeda, Yasushiro Nishioka

    Applied Surface Science　117-118　20-25　1997/06

    Publisher: Elsevier BV

    DOI： 10.1016/s0169-4332(97)80045-1 　

    ISSN： 0169-4332

  166. FTIR-ATR, AFM, and UHV-STM characterization of the interface of SiO2/Si(001) induced by thick SiO2 formation

    Kenji Namba, Tadahiro Komeda, Yasushiro Nishioka

    Applied Surface Science　117-118　198-201　1997/06

    Publisher: Elsevier BV

    DOI： 10.1016/s0169-4332(97)80078-5 　

    ISSN： 0169-4332

  167. Atom manipulation on Si(111)-7×7 surface by contact formation of biased scanning tunneling microscope tip: Surface structures and tip current variation with atom removal

    R. Hasunuma, T. Komeda, H. Mukaida, H. Tokumoto

    Journal of Vacuum Science &amp; Technology A: Vacuum, Surfaces, and Films　15　(3)　1482-1487　1997/05/01

    Publisher: American Vacuum Society

    DOI： 10.1116/1.580566 　

    ISSN： 0734-2101

    eISSN： 1520-8559

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    A novel technique of Si atom removal by approaching biased scanning tunneling microscopy tip to the surface to the point contact region followed by retraction to the tunneling region was applied to Si(111)-7×7 surface to reveal (i) the atomic structures on the newly exposed surfaces, (ii) tip-substrate current variation in relation with the Si atom removal. When the adatoms were removed, the second layer of the diameter-adatom-stacking fault model structure appeared without reconstruction except the relaxation of dimer rows. When a higher biased tip (&amp;gt;2 V) was contacted, the top three layers were removed. Clear metastable structures such as c(2×4) and √3×√3 are observed in the holes, and the shape of these structures was easily changed with the expansion of the size of the hole. A staircase shape current drop was observed in the tip retraction process when the adatoms were removed. This is considerably related to the decrease of the number of Si atoms in the tip-substrate junction with atom-by-atom manner, which shows a clear contrast to the nanowire formation in the metal surface indentation. The last drop of the current to return to the tunneling region might correspond to a junction with a single atom between tip and substrate, which corresponds to 4×105 Ω. A part of the Si atoms in the junction remains on the tip which resulted in the removal of Si adatoms, which occurs with certain probability.

  168. Layer-by-Layer Etching of Si(111) Surface by Oxygen at Elevated Temperature.

    Komeda Tadahiro, Nishioka Yasushiro

    Japanese Journal of Applied Physics　36　(3)　1582-1585　1997

    Publisher: The Japan Society of Applied Physics

    DOI： 10.1143/JJAP.36.1582 　

    ISSN： 0021-4922

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    The kinetics of Si surface etching with gas-phase O2 was examined using scanning tunneling microscopy (STM), which was intended for the application of gas-phase etching by O2 for Si surface flattening. High-temperature STM observation showed the recession of the step edges with the O2 flux of 5× 10-8 Torr on Si(111) at an elevated temperature of ~ 800° C in real time. The high-resolution image clearly showed that the terrace was disordered during the exposure to O2 gas. The recession of step edges is considered to be the result of the detachment of Si atoms from the step edges to fill the defects created by the desorption of SiO.

  169. Interface states at ultrathin oxide/Si(111) interfaces obtained from x-ray photoelectron spectroscopy measurements under biases Peer-reviewed

    H Kobayashi, Y Yamashita, Y Nakato, T Komeda, Y Nishioka

    APPLIED PHYSICS LETTERS　69　(15)　2276-2278　1996/10

    DOI： 10.1063/1.117532 　

    ISSN： 0003-6951

    eISSN： 1077-3118

  170. Interface state-induced shift of the oxide and semiconductor core levels for metal-oxide-semiconductor devices Peer-reviewed

    H Kobayashi, K Namba, Y Yamashita, Y Nakato, T Komeda, Y Nishioka

    JOURNAL OF APPLIED PHYSICS　80　(3)　1578-1582　1996/08

    DOI： 10.1063/1.362954 　

    ISSN： 0021-8979

  171. Layer-by-layer atomic manipulation on Si(111)-7×7 surface

    T. Komeda, R. Hasunuma, H. Mukaida, H. Tokumoto

    Applied Physics Letters　68　(24)　3482-3484　1996/06/10

    Publisher: AIP Publishing

    DOI： 10.1063/1.115765 　

    ISSN： 0003-6951

    eISSN： 1077-3118

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    Layer-by-layer removal of Si atoms from the Si(111)-7×7 surface was executed at room temperature by making a point contact of a biased W tip of scanning tunneling microscope (STM) to the sample surface. The adatom layer and the three layers were controllably removed by tuning the sample bias voltage. In the created holes, clear atomic images were obtained. The current between the STM tip and substrate exhibited characteristic structures during the tip excursion, which are closely related with the atom removal process and the nature of the Si nanoscale wire, respectively.

  172. Cross-Sectional Scanning Tunneling Microscopy on Cleaved Si(111): Observation of Novel Reconstruction and Structural and Electrical Properties of MOS Interface

    Tadahiro Komeda, Shangjr Gwo Tokumoto

    Japanese Journal of Applied Physics　35　(6S)　3724-3724　1996/06/01

    Publisher: IOP Publishing

    DOI： 10.1143/jjap.35.3724 　

    ISSN： 0021-4922

    eISSN： 1347-4065

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    Cross-sectional scanning tunneling microscopy (XSTM) measurements revealed two types of reconstructions on Si(111) surfaces depending on the cleaving conditions. The first one is a 2×1 structure consistent with previous reports. The second one is a novel 8×1 structure, which shows a missing-row structure where one row is missing in every four rows in the 2×1 structure. We propose a model for the missing-row reconstruction seen on the Si(110) surface. XSTM observation of the metal-oxide-semiconductor (MOS) interface structure clearly showed a fractured metal layer and cleaved Si areas which demonstrated the possibility of observing the interface with atomic resolution. Scanning tunneling spectroscopy (STS) measurement of the Si part showed systematic shifts of the spectra with the application of bias voltage between the metal and the Si, which agreed well with the expected band bending in the Si.

  173. MOS interface characterization by cross-sectional STM

    Tadahiro Komeda, S. Gwo, Hiroshi Tokumoto

    Surface Science　357-358　38-41　1996/06

    Publisher: Elsevier BV

    DOI： 10.1016/0039-6028(96)00053-2 　

    ISSN： 0039-6028

  174. Surface roughening and metastable superstructures on wet-processed Si(111) surface induced by hydrogen desorption

    T. Komeda, Y. Morita, H. Tokumoto

    Surface Science　348　(1-2)　153-160　1996/03

    Publisher: Elsevier BV

    DOI： 10.1016/0039-6028(95)00992-2 　

    ISSN： 0039-6028

  175. Interface States for Si-Based MOS Devices with an Ultrathin Oxide Layer: X-Ray Photoelectron Spectroscopic Measurements under Biases

    Hikaru Kobayashi, Yoshiyuki Yamashita, Toshio Mori, Yoshihiro Nakato, Tadahiro Komeda, Yasushiro Nishioka

    Japanese Journal of Applied Physics　34　(2S)　959-959　1995/02/01

    Publisher: IOP Publishing

    DOI： 10.1143/jjap.34.959 　

    ISSN： 0021-4922

    eISSN： 1347-4065

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    Energy distributions of interface states for &lt;30-Å-thick Pt/ 25∼35-Å-thick silicon oxide/ n-Si(100)&gt; metal-oxide-semiconductor (MOS) devices have been obtained from measurements of X-ray photoelectron (XPS) spectra under biases. Upon applying bias voltages, the substrate Si(2p) peak is shifted because of a change in the occupancy of interface states by electrons, inducing a change in the potential drop across the silicon oxide layer. Devices with a native oxide layer have high interface state density near the midgap, which is attributed to isolated dangling-bond states. For MOS devices with a thermal oxide layer grown at 550° C in a wet-oxygen atmosphere, the interface states have two density maxima, one below and the other above the midgap. For devices with a thermal oxide layer formed at 700° C in wet oxygen, two density maxima of the interface states are also observed with reduced density.

  176. Effects of surface oxygen vacancies on electronic states of TiO2(110), TiO2(001) and SrTiO3(001) surfaces

    Y. Aiura, Y. Nishihara, Y. Haruyama, T. Komeda, S. Kodaira, Y. Sakisaka, T. Maruyama, H. Kato

    Physica B: Condensed Matter　194-196　1215-1216　1994/02

    Publisher: Elsevier BV

    DOI： 10.1016/0921-4526(94)90937-7 　

    ISSN： 0921-4526

  177. Comparative Study of Amorphous and Crystalline (Ba, Sr)TiO3 Thin Films Deposited by Laser Ablation

    Bhattacharya Pijush, Komeda Tadahiro, Park Kyung-ho, Nishioka Yasushiro

    Jpn J Appl Phys　32　(9)　4103-4106　1993/09/20

    Publisher: The Japan Society of Applied Physics

    DOI： 10.1143/JJAP.32.4103 　

    ISSN： 0021-4922

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    (Ba0.5Sr0.5)TiO3 thin films (200–300 nm) were deposited on Pt-coated Si substrates by laser ablation at 500 and 650°C. The leakage currents of crystalline films grown at 650°C were found to be higher than those of amorphous films grown at 500°C. The crystalline thin films showed higher surface roughness than the amorphous films as measured by atomic force microscopy (AFM). A columnar grain structure was observed for crystalline films with a grain size of 20–30 nm by transmission electron microscope (TEM) analysis. These factors may be responsible for high leakage currents of crystalline films. Constant current injection measurements for Au/(Ba0.5Sr0.5)TiO3/Pt capacitors showed that electron trapping states near the top electrode interface were higher in number than at bottom electrode interface. This may be due to the presence of reactive sites on the surface of deposited films as observed by X-ray photoelectron spectroscopy (XPS) measurements.

  178. Electronic Structure of Stoichiometric and Reduced SrTiO3(100) Surfaces: A Photoemission Study

    Yuichi Haruyama, Hirohito Fukutani, Yoshihiro Aiura, Yoshikazu Nishihara, Tadahiro Komeda, Shuji Kodaira, Takahiro Maruyama, Hiroo Kato

    Japanese Journal of Applied Physics　32　(S3)　543-543　1993/01/01

    Publisher: IOP Publishing

    DOI： 10.7567/jjaps.32s3.543 　

    ISSN： 0021-4922

    eISSN： 1347-4065

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    We have performed angle-resolved photoemission and X-ray photoemission studies for Stoichiometric and reduced SrTiO3(100) surfaces. In the empirical band structure of the O2p valence bands along the whole Δ line in the bulk Brillouin zone, there is no essential difference between the Stoichiometric and reduced surfaces. Our results are in excellent agreement with the calculation. In addition to the O2p valence band structure, two new states at ∼1 eV and ∼11 eV below Fermi level appear for the reduced surface (but not for the stoichiometric surface). We show that both of these states are closely connected with oxygen vacancies near the surface.

  179. Electronic structure of solid<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>60</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>: Experiment and theory

    J. H. Weaver, José Luís Martins, T. Komeda, Y. Chen, T. R. Ohno, G. H. Kroll, N. Troullier, R. E. Haufler, R. E. Smalley

    Physical Review Letters　66　(13)　1741-1744　1991/04/01

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevlett.66.1741 　

    ISSN： 0031-9007

Show all ︎Show first 5

Misc. 107

  1. Electrical Property and Photo response in Field-Effect Transistors with Vertically Stacked Heterostructure Channels Made of 2D materials

    和泉廣樹, 高岡毅, 安藤淳, NASIRUDDIN Md., 坂下晃輔, 佐藤碧, 岡田光博, 久保利隆, 米田忠弘

    応用物理学会春季学術講演会講演予稿集(CD-ROM)　70th　2023

    ISSN： 2436-7613

  2. 二次元材料のその場/オペランド計測に向けたSTMシステムの開発

    母良田友, 橋本克之, 橋本克之, 川口諒, 中川原圭太, 米田忠弘, 米田忠弘, 角館俊行

    応用物理学会東北支部学術講演会(CD-ROM)　77th　2022

  3. The Property of MoS2-FET Under flowing Alcohol Fluids

    高岡毅, 高橋巧成, 和泉廣樹, UDDIN Nasir, 道祖尾恭之, 安藤淳, 米田忠弘

    応用物理学会春季学術講演会講演予稿集(CD-ROM)　69th　2022

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  4. The Effect of Alcohol Fluids onto the Property of MoS2-FET

    高岡毅, UDDIN Nasir, 和泉廣樹, 道祖尾恭之, 安藤淳, 米田忠弘

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)　83rd　2022

    ISSN： 2436-7613

  5. Scanning Probe Microscopy FOREWORD

    Ken Nakajima, Koji Sumitomo, Tomonobu Nakayama, Ken-ichi Fukui, Masami Kageshima, Shigeki Kawai, Tadahiro Komeda, Takuji Takahashi, Takayuki Uchihashi

    JAPANESE JOURNAL OF APPLIED PHYSICS　60　(SE)　2021/09

    DOI： 10.35848/1347-4065/ac0814 　

    ISSN： 0021-4922

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  6. The Property of MoS2-FET Under Alcohol Fluids

    高岡毅, 田中悠太, 和泉廣樹, 高橋巧成, ALAM Md Iftekharul, AL MAMUN Muhammad Shamim, 道祖尾恭之, 米田忠弘

    応用物理学会春季学術講演会講演予稿集(CD-ROM)　68th　2021

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  7. Electrical conduction characteristic change in MoS2 FET in the gas environment

    道祖尾恭之, AL. MAMUN M.S., 高岡毅, 和泉廣樹, WANG Z., ALAM M. I., 田中悠太, 高橋巧成, 安藤淳, 荒船竜一, 米田忠弘

    応用物理学会春季学術講演会講演予稿集(CD-ROM)　68th　2021

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  8. Changes in Electrical Properties and Surface Conditions due to Molecular Adsorption on MoS2 Surface

    和泉廣樹, SHAMIM AL Mamun Muhammad, 高橋巧成, MD Iftekharul Alam, NASIRUDDIN, 高岡毅, 米田忠弘

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)　82nd　2021

    ISSN： 2436-7613

  9. Photo-response of MoS2-FET with CuPc, CoPc, and H2Pc molecules

    高岡毅, ALAM Md Iftekharul, 和泉廣樹, 高橋巧成, AL MAMUN Muhammad Shamim, UDDIN Nasir, 道祖尾恭之, 米田忠弘

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)　82nd　2021

    ISSN： 2436-7613

  10. Optical response of exfoliated MoS2 FETs in gaseous atmosphere

    道祖尾恭之, MAMUN M.S. Al., 高岡毅, 和泉廣樹, WANG Z., ALAM M. I., 田中悠太, 高橋巧成, 安藤淳, 荒船竜一, 米田忠弘

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)　82nd　2021

    ISSN： 2436-7613

  11. Scanning Probe Microscopy FOREWORD

    Ken Nakajima, Koji Sumitomo, Tomonobu Nakayama, Ken-ichi Fukui, Masami Kageshima, Shigeki Kawai, Tadahiro Komeda, Takuji Takahashi, Takayuki Uchihashi

    JAPANESE JOURNAL OF APPLIED PHYSICS　59　2020/08

    DOI： 10.35848/1347-4065/ab9f31 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  12. 紫外光電子分光実験を用いた分子吸着に由来するMoS2表面で生じる電子状態変化の観測

    和泉廣樹, 田中悠太, 高橋巧成, IFTEKHARUL Alam Md, MAMUN Muhammad Shamim Al, 高岡毅, 米田忠弘

    東北大学多元物質科学研究所研究発表会講演予稿集　20th　2020

  13. Photo-response of MoS2-FET with CuPc molecules

    高岡毅, MD Iftekharu Alam, 和泉廣樹, 田中悠太, MUHAMMAD Shamim Al Mamun, 米田忠弘

    応用物理学会春季学術講演会講演予稿集(CD-ROM)　67th　2020

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  14. MoS2-FET Operated Under the Fluids and Drops

    田中悠太, 高岡毅, 和泉廣樹, MAMUN Muhammad Shamim Al, IFTEKHARUL Alam Md, 米田忠弘

    応用物理学会春季学術講演会講演予稿集(CD-ROM)　67th　2020

    ISSN： 2436-7613

  15. Observation of Electronic State Change due to Molecular Adsorption on MoS2 Surface using Ultraviolet Photoelectron Spectroscopy

    和泉廣樹, 田中悠太, 高橋巧成, ALAM Md Iftekharul, MAMUN Muhammad Shamim Al, 高岡毅, 米田忠弘

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)　81st　2020

    ISSN： 2436-7613

  16. MoS2-FET Operated Under the Fluids and Drops

    田中悠太, 高岡毅, 和泉廣樹, MAMUN Muhammad Shamim Al, IFTEKHARUL Alam Md, 米田忠弘

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)　81st　2020

    ISSN： 2436-7613

  17. 分子吸着によるキャリアドーピングを用いたMoS2-FETの電気特性変化

    和泉廣樹, 高岡毅, TRUNG Nguyen Tat, ALAM Md Iftekhar, 鷲田一樹, MAMUN Muhammad Shamim AL, 米田忠弘

    日本物理学会講演概要集(CD-ROM)　74　(1)　2019

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  18. TCNQをチャンネルにドープしたMoS2FETへの光照射効果

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    日本物理学会講演概要集(CD-ROM)　74　(2)　2019

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  19. MoS2-FET分子センサーにおける高感度な電気特性変化を応用した気体分子吸着前後でのMoS2表面状態変化の観測

    和泉廣樹, 高岡毅, IFTEKHARUL Alam Md, MAMUN Muhammad Shamim Al, 田中悠太, 米田忠弘

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)　80th　2019

    ISSN： 2436-7613

  20. 流体環境下における二硫化モリブデン電界効果トランジスタの動作特性

    田中悠太, 高岡毅, 和泉廣樹, MAMUN Muhammad Shamim Al, IFTEKHARUL Alam Md, 米田忠弘

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    ISSN： 2436-7613

  21. Atomically Controlled Surfaces, Interfaces and Nanostructures/Scanning Probe Microscopy

    Takuji Takahashi, Daisuke Fujita, Hirokazu Fukidome, Ken Ichi Fukui, Hiroki Hibino, Masami Kageshima, Tadahiro Komeda, Ken Nakajima, Makoto Nakamura, Tomonobu Nakayama, Hiroshi Nohira, Kaoru Sasakawa, Naruo Sasaki, Koji Sumitomo, Takayuki Uchihashi, Takanobu Watanabe, Yoichi Yamada

    Japanese Journal of Applied Physics　58　(SI)　2019/01/01

    DOI： 10.7567/1347-4065/ab2864 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  22. Scanning Probe Microscopy FOREWORD

    Takuji Takahashi, Ken-ichi Fukui, Masami Kageshima, Tadahiro Komeda, Ken Nakajima, Tomonobu Nakayama, Koji Sumitomo, Takayuki Uchihashi

    JAPANESE JOURNAL OF APPLIED PHYSICS　56　(8)　2017/08

    DOI： 10.7567/JJAP.56.08L001 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  23. Scanning Probe Microscopy FOREWORD

    Takuji Takahashi, Masami Kageshima, Ken Nakajima, Ken-ichi Fukui, Tadahiro Komeda, Koji Sumitomo, Takayuki Uchihashi, Tomonobu Nakayama

    JAPANESE JOURNAL OF APPLIED PHYSICS　55　(8)　2016/08

    DOI： 10.7567/JJAP.55.08N001 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  24. Scanning Probe Microscopy FOREWORD

    Masami Kageshima, Ken-ichi Fukui, Tadahiro Komeda, Ken Nakajima, Tomonobu Nakayama, Koji Sumitomo, Takuji Takahashi, Takayuki Uchihashi

    JAPANESE JOURNAL OF APPLIED PHYSICS　54　(8)　2015/08

    DOI： 10.7567/JJAP.54.08L001 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  25. 7pBH-7 Spin Detection of Magnetic Organic Molecules by Scanning Tunneling Microscope (STM)

    Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　69　(2)　597-597　2014/08/22

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  26. Nitridation of Al(111) Surface induced by N2 Translational Energy: Surface Temperature Dependence

    TERAOKA Yuden, JINNO Muneaki, TAKAOKA Tsuyoshi, HARRIES James, OKADA Ryuta, IWAI Yutaro, YOSHIGOE Akitaka, KOMEDA Tadahiro

    化学反応討論会講演要旨集　29th　53　2013/06/05

  27. N2並進運動エネルギー誘起Al(111)窒化膜の成膜温度による膜質の変化と773K以下における熱変性

    神農宗徹, 寺岡有殿, 高岡毅, 岡田隆太, 岩井優太郎, 吉越章隆, 米田忠弘

    真空に関する連合講演会講演予稿集　53rd　29　2012/11/14

  28. 金属表面における分子ビームによる酸化・窒化反応制御とその放射光光電子分光観察 II

    寺岡有殿, 井上敬介, 神農宗徹, HARRIES James, 岡田隆太, 岩井優太郎, 高岡毅, 吉越章隆, 米田忠弘

    日本学術会議材料工学連合講演会講演論文集　56th　360-361　2012/10/29

  29. N2運動エネルギー誘起Al(111)窒化膜の773K以下における熱変性

    神農宗徹, 寺岡有殿, 高岡毅, 岡田隆太, 岩井優太郎, 吉越章隆, 米田忠弘

    応用物理学会学術講演会講演予稿集(CD-ROM)　73rd　ROMBUNNO.13A-C3-8　2012/08/27

  30. 19pCC-6 Observation of Kondo Resonance at Molecular Magnet by Scanning Tunneling Microscope

    Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　67　(2)　418-418　2012/08/24

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  31. N2運動エネルギー誘起Al(111)窒化におけるインキュベーション時間の623K以下での表面温度依存性

    神農宗徹, 寺岡有殿, 高岡毅, 吉越章隆, 米田忠弘

    応用物理学関係連合講演会講演予稿集(CD-ROM)　59th　ROMBUNNO.18A-B6-4　2012/02/29

  32. Tip-enhanced Raman spectroscopy of 4,4'-bipyridine and 4,4'-bipyridine /N, N'/-dioxide adsorbed on gold thin films

    Abstract of annual meeting of the Surface Science of Japan　32　(0)　185-185　2012

    Publisher: The Surface Science Society of Japan

    DOI： 10.14886/sssj2008.32.0_185 　

  33. Analysis of nitrogen distribution in Nitride Films on Al(111) formed by Kinetic Energy Induced N2 Adsorption

    TAKAOKA Tsuyoshi, Jinno Muneaki, Teraoka Yuden, Okada Ryuta, Iwai Yutaro, Harries James, Yoshigoe Akitaka, Komeda Tadahiro

    Abstract of annual meeting of the Surface Science of Japan　32　(0)　140-140　2012

    Publisher: 公益社団法人 日本表面科学会

    DOI： 10.14886/sssj2008.32.0_140 　

    More details Close

    窒化アルミニウム（AlN）は様々な機能を持つ材料として注目されている。N2ガスはアルミニウムとは反応しにくいので、AlN薄膜形成には化学気相成長などの方法が用いられる。しかし、我々は超高真空中でAl(111)表面に並進運動エネルギー1.8 eV以上の超音速N2分子線を照射すると室温でも直接窒化反応が起こることを見出した。この手法によって作製したAlN薄膜における窒素原子の深さ方向分布について、主に角度分解放射光XPSを用いて解析した。

  34. 走査型トンネル顕微鏡(STM)で分子を観る : 分子を観るための基板・試料作成の実際

    米田 忠弘

    化学と工業 = Chemistry and chemical industry　64　(6)　462-463　2011/06/01

    ISSN： 0022-7684

  35. Surface temperature dependence of incubation time in N2 kinetic energy induced Al(111) nitridation

    jinno muneaki, teraoka yuden, Takaoka Tsuyoshi, Harries James, Yoshigoe Akitaka, Komeda Tadahiro

    Abstract of annual meeting of the Surface Science of Japan　31　(0)　32-32　2011

    Publisher: 公益社団法人 日本表面科学会

    DOI： 10.14886/sssj2008.31.0.32.0 　

    More details Close

    Al(111)表面の超音速N&lt;SUB&gt;2&lt;/SUB&gt;分子線による運動エネルギー誘起窒化では表面温度473 Kでは直線状の吸着曲線が得られるが、373 Kではインキュベーション時間が確認され、室温ではさらにインキュベーション時間が長くなった。このようなインキュベーション時間の存在と大きな表面温度依存性はN原子の拡散を示唆している

  36. 23pWX-6 Scanning Tunneling Microscopy Investigation of tris(phthalocyaninato)yttrium triple-decker molecules deposited on Au(111)

    Liu Jie, Isshiki Hironari, Katoh Keiichi, Yamashita Masahiro, Miyasaka Hitoshi, Breedlove Brian K., Takaishi Shinya, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　65　(2)　843-843　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  37. 26aWS-1 Displacement of NO on Pt(997) surface

    Takaoka Tsuyoshi, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　65　(2)　880-880　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  38. 25pWX-6 Spin Control Induced by Conformation Change of Double Decker Phthalocyanine Molecules

    Isshiki Hironari, Liu Jie, Kato Keiichi, Yamashita Masahiro, Lorente Nicolas, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　65　(2)　428-428　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  39. 独立駆動型4探針電気伝導測定装置によるグラフェンおよびカーボンナノチューブの伝導率評価

    関沢拓実, 掛札洋平, 吹留博一, 末光眞希, 米田忠弘

    表面科学学術講演会講演要旨集　30th　2010

  40. 28pYG-1 STM study of the Hydrogen interaction with CeO_2(111)

    Shahed Syed Mohammad Fakruddin, Sainoo Yasuyuki, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　64　(2)　848-848　2009/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  41. 27pYH-5 IET processes for alkanethiol self assembled monolayers

    Okabayashi N., Konda Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　64　(2)　842-842　2009/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  42. 25pRA-1 2層フタロシアニン・ランタノイド錯体で観察される単層膜規則構造と近藤効果(表面磁性,領域3,領域9合同,領域9,表面・界面,結晶成長)

    一色 弘成, 張 イエンフォン, 米田 忠弘, 吉田 祐輔, 加藤 恵一, 宮坂 等, 山下 正廣

    日本物理学会講演概要集　64　(2)　801-801　2009/08/18

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  43. 25pRA-1 2層フタロシアニン・ランタノイド錯体で観察される単層膜規則構造と近藤効果(領域3,領域9合同 表面磁性,領域3,磁性,磁気共鳴)

    一色 弘成, 張 イエンフォン, 米田 忠弘, 吉田 祐輔, 加藤 恵一, 宮坂 等, 山下 正廣

    日本物理学会講演概要集　64　(2)　332-332　2009/08/18

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  44. Study of Friction of Molecules Adsorbed on a Surface by Using Supersonic Molecular Beam

    Tsuyoshi Takaoka, Tadahiro Komeda

    日本物理学会誌　64　(8)　627-631　2009/08

  45. 27pTE-3 A low temperature scanning tunneling microscopy/spectroscopy investigation about YPc2 and DyPc adsorption on Au(111)

    Zhang Yan Feng

    Meeting abstracts of the Physical Society of Japan　64　(1)　882-882　2009/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  46. 27aRD-3 Collision induced migration of NO on Pt(997) surface

    Takaoka Tsuyoshi, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　64　(1)　868-868　2009/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  47. 30aTE-6 STM-IETS for deuterated alkanethiol self assembled monolayers

    Okabayashi N., Konda Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　64　(1)　921-921　2009/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  48. 30aTF-11 Cryogenic STM/STS Measurement of lanthanoide phtalocyanine molecule on Au(111)

    Isshiki H., Zhang Y. F., Komeda T., Yoshida Y., Kato K., Miyasaka H., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　64　(1)　515-515　2009/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  49. 28pRD-2 ESR-STM to Detect Single Spin

    Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　64　(1)　490-490　2009/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  50. 22pPSB-26 Synthesis of the partial deuterated alkanethiol and its Absorption to the gold surface

    Konda Y, Okabayashi N, Komeda T

    Meeting abstracts of the Physical Society of Japan　63　(2)　843-843　2008/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  51. 21pXA-10 STM-IETS for Alkanethiol Self Assembled Monolayer : Film Thickness Dependence and Isotope Effect

    Okabayashi N., Konda Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　63　(2)　815-815　2008/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  52. 21aXB-1 Friction of molecules on surface using the collision with supersonic molecular beam

    Takaoka Tsuyoshi, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　63　(2)　810-810　2008/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  53. 25pTD-11 Electron transport properties of alkanethiol self-assembled monolayer investigated with LT-STM

    Okabayashi N., Konda Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　63　(1)　894-894　2008/02/29

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  54. 解説 走査プローブを用いた表面磁性測定-ESR-STMによる単一スピン計測の可能性

    米田忠弘

    まぐね　13　(1)　27-35　2008

    Publisher: 日本磁気学会

    ISSN： 1880-7208

  55. Control and FTIR Analysis of CO Diffusion on Pt(997) Surface

    TAKAOKA Tsuyoshi, KOMEDA Tadahiro

    Journal of the Surface Science Society of Japan　28　(8)　440-446　2007/08/10

    Publisher: 日本表面科学会

    ISSN： 0388-5321

  56. 21pWH-9 migration of CO on Pt(997) surface

    Takaoka Tsuyoshi, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　62　(1)　929-929　2007/02/28

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  57. COLL 411-Dynamics of adsorbed molecules through vibratonal excitation using STM

    Tadahiro Komeda

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　232　2006/09

    ISSN： 0065-7727

  58. 23pYC-9 金(111)表面上に吸着したBDA分子の吸着構造と電子状態(23pYC 表面界面電子物性,領域9(表面・界面,結晶成長))

    朱 娜, 長田 違朗, 道祖尾 恭之, 米田 忠弘

    日本物理学会講演概要集　61　(2)　726-726　2006/08/18

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  59. 23pYC-8 Operation of BDA molecules deposited on Au(111) surface by tunneling electron insertion

    Osada T., Zhu N., Sainoo Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　61　(2)　725-725　2006/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  60. 27pYB-6 Hydrocarbon molecule adsorption on Au(111) observed by 10K STM

    Zhu N., Sainoo Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　61　(1)　871-871　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  61. 28aSC-6 Frequency analysis of STM tunneling current transmitted through radical molecules located in a magnetic field II

    Okabayashi N., Sainoo Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　61　(1)　874-874　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  62. 27pXJ-5 lateral motion of CO on Pt surface

    Takaoka Tsuyoshi, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　61　(1)　867-867　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  63. 20aYB-1 Frequency analysis of STM tunneling current via radical molecules located in a magnetic field

    Okabayashi N., Sainoo Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　60　(2)　295-295　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  64. 19pWA-3 Vibration excitation of adsorbed molecules using scanning tunneling microsocpy

    Komeda Tadahlro

    Meeting abstracts of the Physical Society of Japan　60　(2)　50-50　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  65. 20aXF-11 UHV-STM Observation of Lysozyme (Hen egg white) film grown on Au(111)

    Yamaguchi T., Komeda T.

    Meeting abstracts of the Physical Society of Japan　60　(2)　738-738　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  66. 20aYB-1 Frequency analysis of STM tunneling current via radical molecules located in a magnetic field

    Okabayashi N., Sainoo Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　60　(2)　738-738　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  67. 22aXF-1 Frequency analysis of STM tunneling current via radical molecules located in a magnetic field

    Zhu N., Sainoo Y., Komeda T.

    Meeting abstracts of the Physical Society of Japan　60　(2)　782-782　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  68. 22aXF-2 Observation of water molecules on transition metals using an STM

    Kim Yousoo, Okawa Toshiro, Sainoo Yasuyuki, Komeda Tadahiro, Kawai Maki

    Meeting abstracts of the Physical Society of Japan　60　(2)　782-782　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  69. Mapping of IETS feature using STM

    Komeda T., Sainoo Y., Kim Y., Kawai M.

    Meeting abstracts of the Physical Society of Japan　58　(1)　866-866　2003/03/06

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  70. Electronic structure of DNA under the chemical-doping condition investigated by PES & NEXAFS

    Furukawa Masashi, Kato H. S., Taniguchi M., Hatsui T., Kosugi N., Komeda T., Kawai Maki, Kawai T.

    Meeting abstracts of the Physical Society of Japan　58　(1)　788-788　2003/03/06

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  71. Dynamical Motion of an Adsorbed Single Molecule on Metal Surface Induced by Inelastic Tunneling Current with Scanning Tunneling Microscope

    Ueba H., Komeda T., Kawai M.

    58　(1)　29-33　2003

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 0029-0181

    More details Close

    A single molecule imaging, vibrational spectroscopy and controlled manipulation of surface chemical reactions of adsorbed molecules on metal and semiconductor surfaces have been accomplished with a combination of scanning tunneling microscope and the inelastic electron tunneling (IET) via the vibrational excitation. Recently, we observed that a site-hopping of CO molecules on Pd is induced by IET via the excitation of the C-O stretch mode. We present a brief description of the experimental results and elementary processes of how the energy of the high frequency C-O stretch mode is transfered to the low frequency frustrated translational mode along the reaction coordinate in competing with its vibrational relaxation via electron-hole pair excitation.

  72. Adsorbate hopping and vibration spectroscopy by STM-IETS

    Komeda T.

    Meeting abstracts of the Physical Society of Japan　57　(2)　735-735　2002/08/13

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  73. Adsorbed structure and the molecular orientation of DNA base molecules on Cu(110).

    Furukawa Masashi, Fujisawa H, Katano S, Ogasawara H, Kim Y, Komeda T, Nilsson A, Kawai Maki

    Meeting abstracts of the Physical Society of Japan　57　(2)　747-747　2002/08/13

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  74. Scanning Tunneling Microscopy and Near Edge X-ray Absorption Fine Structure Studies of Adsorption of Trans-2-butene on Pd(110)

    Satoshi Katano, Yousoo Kim, Masashi Furukawa, Hirohito Ogasawara, Tadahiro Komeda, Hiroyuki S. Kato, Anders Nilsson, Maki Kawai, Kazunari Domen

    Japanese Journal of Applied Physics　41　(Part 1, No. 7B)　4911-4915　2002/07/30

    Publisher: IOP Publishing

    DOI： 10.1143/jjap.41.4911 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  75. Single Molecule Reaction and Characterization by Vibrational Excitation

    KOMEDA Tadahiro, KIM Yousou, KAWAI Maki

    Journal of the Surface Science Society of Japan　23　(7)　443-449　2002/07/10

    Publisher: 日本表面科学会

    ISSN： 0388-5321

  76. 金属上単一分子のトンネル電子誘起反応

    道祖尾恭之, KIM Y, 吹留博一, 米田忠弘, 川合真紀, 重川秀実

    応用物理学関係連合講演会講演予稿集　49th　(2)　2002

  77. STM-IETS Spectra of Water on Pd(110).

    吹留博一, KIM Y, 道祖尾泰之, 米田忠弘, 重川秀実, 川合真紀

    日本化学会講演予稿集　81st　(1)　2002

    ISSN： 0285-7626

  78. 走査型トンネル顕微鏡(STM)-走査プローブ顕微鏡の実力

    米田忠弘

    図解ナノテク活用技術のすべて　31-36　2002

  79. Narrow Photoemission Peak at the Fermi Level in Fe/Cu(111)

    T. Susaki, T. Komeda, M. Kawai

    Phys. Rev. Lett　88　187602　2002

  80. 27pWD-12 Inelastic tunneling spectroscopy of hydro carbon molecules adsorbed on Pd(110)

    Komeda T, Fukidome H, Kim Y.-S, Kawai Maki

    Meeting Abstracts of the Physical Society of Japan　57　(0)　871-871　2002

    Publisher: The Physical Society of Japan

    ISSN： 1342-8349

  81. Photoemission study of ultrathin Fe film on Au

    T. Susaki, T. Kubota, T. Komeda, Maki Kawai

    Surface Science　493　(1-3)　708-712　2001/11

    Publisher: Elsevier BV

    DOI： 10.1016/s0039-6028(01)01287-0 　

    ISSN： 0039-6028

  82. Electronic structure of DNA polynucleotides adsorbed on solid surfaces studied by XPS and XAS.

    Furukawa M., Takeuchi T., Tanaka S., Fukushima A., Kato H. S., Komeda T., Tanaka Hiro, Kawai T., Kawai M., Shin S.

    Meeting abstracts of the Physical Society of Japan　56　(2)　744-744　2001/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  83. Photoemission study of Fe evaporated on Cu(111)

    Susaki T., Komeda T., Kawai M.

    Meeting abstracts of the Physical Society of Japan　56　(2)　745-745　2001/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  84. Inelastic tunneling spectroscopy of hydro carbon molecules adsorbed on Pd(110)

    Komeda T., Kim Y.-S., Kawai M.

    Meeting abstracts of the Physical Society of Japan　56　(1)　825-825　2001/03/09

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  85. Superconducting gap stuructures of high-T_c superconductors from point-contact and tunneling spectroscopy

    Kawayama I., Komeda T., Kawai M., Kawai T.

    Meeting abstracts of the Physical Society of Japan　56　(1)　580-580　2001/03/09

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  86. Photoemission study of Fe evaporated on noble metals

    Susaki T., Kubota T., Komeda T., Kawai M.

    Meeting abstracts of the Physical Society of Japan　56　(1)　787-787　2001/03/09

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  87. Electronic structure of DNA base molecules adsorbed on Cu surfaces studied by UPS, XPS, and XAS

    Furukawa M, Komeda T, Ogasawara H, Katano S, Kawai M, Tanaka H, Kawai T, Nilsson A

    Meeting abstracts of the Physical Society of Japan　56　(1)　799-799　2001/03/09

    Publisher: 社団法人日本物理学会

    ISSN： 1342-8349

  88. Characteristics of SN junctions with high temperature superconductors

    Kawayama I., Komeda T., Kawai M., Kawai T.

    Meeting abstracts of the Physical Society of Japan　55　(2)　486-486　2000/09/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  89. Low-temperature STM investigation of 1-D structure of CO on Pd(110)

    Kim Y., Kato H. S., Komeda T., Kawai M.

    Meeting abstracts of the Physical Society of Japan　55　(2)　752-752　2000/09/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  90. Inelastic Tunneling Spectroscopy and Tunnel Current Induced CO diffusion on Pd(110)

    Komeda T., Kim Y S., Kawai M.

    Meeting abstracts of the Physical Society of Japan　55　(2)　797-797　2000/09/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  91. Photoemission study of ultrathin Fe film evaporated on Cu

    Susaki T., Kubota T., Komeda T., Kawai M.

    Meeting abstracts of the Physical Society of Japan　55　(2)　778-778　2000/09/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  92. Observation and manipulation of C2H2 molecule on Pd(110) by UHV-STM at liq He temperature

    Komeda T., Kim Y., Kawai M.

    Meeting abstracts of the Physical Society of Japan　55　(1)　802-802　2000/03/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  93. Single molecular manipulation on metal surfaces using STM

    Kim Y., Komeda T., Kawai M.

    Meeting abstracts of the Physical Society of Japan　55　(1)　802-802　2000/03/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  94. 27aY-1 STM-tip-induced Novel 1D Chain Structure on H-saturated Ni(100) surface

    Komeda T, Kawai M

    Meeting abstracts of the Physical Society of Japan　54　(2)　834-834　1999/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  95. 24aW-12 The adsorption of 1,3-butadience on Ni(100) observed by low temperature STM

    Sakurai T., Yoneda T., Nishioka Y., Kawai M.

    Meeting abstracts of the Physical Society of Japan　54　(2)　780-780　1999/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  96. 26aPS-17 STM investigation of adsorption behavior of acetylene on Ni(100)

    Kim Y, Komeda T, Kawai M

    Meeting abstracts of the Physical Society of Japan　54　(2)　816-816　1999/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  97. 31p-S-5 Low Temperature STM observation of CO molecules adsorbed on Ni(100)surface

    Komeda T., Moriwaki T., Kawai M.

    Meeting abstracts of the Physical Society of Japan　54　(1)　342-342　1999/03/15

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  98. 31p-S-2 Interaction of physisorbed and chemisorbed N.2 species on Pd(110)

    Yoshinobu Jun, Kato H, Okuyama H, Ogasawara H, Komeda T, Kawai M, Tanak S

    Meeting abstracts of the Physical Society of Japan　54　(1)　341-341　1999/03/15

    Publisher: 社団法人日本物理学会

    ISSN： 1342-8349

  99. Formation of periodic step and terrace structure on Si(100) surface during annealing in hydrogen diluted with inert gas

    Y Kumagai, K Namba, T Komeda, Y Nishioka

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS　16　(3)　1775-1778　1998/05

    DOI： 10.1116/1.581301 　

    ISSN： 0734-2101

    eISSN： 1520-8559

  100. Effects of doping on surface stress and step strucure of Si(100)

    KIMURA Shigenobu, KOMEDA Tadahiro, NISHIOKA Yasushiro

    Meeting abstracts of the Physical Society of Japan　53　(1)　306-306　1998/03/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  101. Formation and characterization of Si Nanowire formed by indenting Si surface with high-temp STM

    Meeting abstracts of the Physical Society of Japan　53　(1)　302-302　1998/03/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  102. Si(001) surface variation with annealing in ambient H2

    T. Komeda, Y. Kumagai

    Physical Review B　58　(3)　1385-1391　1998

    DOI： 10.1103/PhysRevB.58.1385 　

    ISSN： 0163-1829

  103. Obsevation on the dissolution of Si(111) in water by means of in-situ AFM.

    吹留博一, 難波健治, 米田忠弘, 西岡泰城, 松村道雄

    応用物理学会学術講演会講演予稿集　59th　(2)　1998

  104. Formation of Silicon Atomic Wires and its Electronic Properties

    Tokumoto H., Hasunuma R., Mukaida H., Komeda T.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting　1996　(2)　137-138　1996/09/13

    Publisher: The Physical Society of Japan (JPS)

  105. High Temperature STM Observation of Layer-by-Layer Etching of Si(111) with O_2 Flux

    KOMEDA Tadahiro, NISHIOKA Yasushiro

    1996　389-391　1996/08/26

  106. 1p-YA-5 Layer-by-Layer Removal of Silicon Atoms by STM and Qunatum Conduction through Atomic Wires

    Tokumoto H, Komeda T, Mukaida H, Hasunuma R

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting　51　(2)　532-532　1996/03/15

    Publisher: The Physical Society of Japan (JPS)

  107. 28p-Y-6 Nanofabrication of C60 Thin Film by STM

    Komeda Tadahiro, Nishioka Yasushiro

    1992　(2)　515-515　1992/09/14

    Publisher: The Physical Society of Japan (JPS)

Show all ︎Show first 5

Books and Other Publications 1

  1. 走査プローブ顕微鏡－正しい実験とデータ解析のために必要なこと－

    重川秀実, 吉村雅満, 河津 璋, 責任編集, 米田, 忠弘, 道祖尾 恭之

    共立出版　2009

Presentations 104

  1. Investigation of Spin State of Magnetic Molecule in Tunneling Junction Combined with RF Signal Invited

    Tadahiro Komeda

    The 15th NJUST High-Level Zijin Forum for Overseas Young Scholars　2024/12

  2. Thickness-Dependent Raman, Photoluminescence, and AFM Studies of MoS2/WSe2 Heterostructures

    Devsharma Sushen Chandra, Tsuyoshi Takaoka, Mitsuhiro Okada, Toshitaka Kubo, Atsushi Ando, Tadahiro Komeda

    Surface and Interface Spectroscopy2024　2024/12/17

  3. 溶液中の分⼦に対する MoS2-FET の電気特性の変化

    黑澤一姫, Md. Nasiruddin, 和泉廣樹, Muhammad Shamim Al Mamun, 高岡毅, 米田忠弘

    表面界面スペクトロ スコピー2024　2024/12/17

  4. Radio-frequency (RF) Injection Scanning Tunneling Spectroscopy of a Superconducting NbSe2 Surface

    Md. Arafat Ali, Zhipeng Wang, Mohammad Ikram Hossain, Ferdous Ara, Syed Mohammad, Fakruddin Shahed, Tadahiro Komeda

    Surface and Interface Spectroscopy2024　2024/12/17

  5. Unveil intramolecular exchange coupling variability within Single Molecule Magnets:Insights from Bis(phthalocyaninato)terbium(III) (TbPc2)

    Zhipeng Wang, Ali Md. Arafa, Peiwen Zong, Syed Mohammad, Fakruddin Shahed, Shishir Kumar Dey, Takuma Ito, Yasuyuki Sainoo, Keiichi Katoh, Masahiro Yamashita, Tadahiro Komeda

    Surface and Interface Spectroscopy2024　2024/12/17

  6. Ratio-Frequency excitation of YPc2 molecule by scanning tunnelling microscopy

    Kazuaki Suda, Dey Shishir Kumar, Chowdhury Uttam Kumar, Tadahiro Komeda

    Surface and Interface Spectroscopy2024　2024/12/17

  7. Magnetic field dependence of a Kondo resonance in TbPc2 and YPc2 adsorbed on Pb (111) substrate

    Chowdhury Uttam Kumar, Dey Shishir Kumar, Kazuaki Suda, Syed Mohammad, Fakruddin Shahed, Tadahiro Komeda

    Surface and Interface Spectroscopy2024　2024/12/17

  8. Development of RF Modulated Tunneling Spectroscopy for Magnetic Molecule Adsorbed on Superconducting Surface

    Shishir Kumar Dey, Md. Arafat Ali, Zhipeng Wang, Peiwen Zong, Kadahiro Komeda

    Surface and Interface Spectroscopy2024　2024/12/17

  9. Chemical Sensing Using MoS2 Field Effect Transistor Combined with Monochromatized Light

    Tsuyoshi Takaoka, Haotian Liu, Gaku Kosuge, Kazuki Kurosawa, Sushen Devsharma, Atsushi Ando, Tadahiro Komeda

    2024 MRS Fall Meeting & Exhibit　2024/12/05

  10. Investigation of Spin State of Magnetic Molecule in Tunneling Junction Combined with RF Signal Invited

    Tadahiro Komeda

    Materials Science of Solids and Surfaces using Radiation Field Controlled in Time/Space Domain　2024/10/30

  11. Unveil intramolecular exchange coupling variability within Single Molecule Magnets: Insights from Bis(phthalocyaninato)terbium(III) (TbPc2)

    Zhipeng Wang

    VASSCAA-12　2024/10/16

  12. Investigation of Spin State of Magnetic Molecule in Tunneling Junction Combined with RF Signal Invited

    Tadahiro Komeda

    VASSCAA-12　2024/10/16

  13. オプティカルデバイスに向けた光応答分子・溶液と２D物質との複合材料 Invited

    Komeda Tadahiro, 高岡 毅

    第85回応用物理学会 秋季学術講演会　2024/09/18

  14. MoS2-FETフォトカレントの銅ナフタロシアニン分子吸着量依存性

    高岡 毅, 小菅 楽, Liu Haotian, 黒澤 一姫, Chandra Devsharma Sushen, 安藤 淳, 米田 忠弘

    第85回応用物理学会 秋季学術講演会　2024/09/17

  15. STMへのRF信号入射による超伝導Pb(111)表面に吸着した単分子磁石TbPc2とYPc2分子の化学分析

    Dey Shishir Kumar, Chowdhury Uttam, Ali Md. Arafa, Shahed S.M.D., 高岡毅, 米田忠弘

    日本物理学会 第79回次年次大会　2024/09/19

  16. 超伝導Pb(111)表面に吸着した単分子磁石TbPc2とYPc2分子で観察される近藤共鳴とYSRピークによる分子内交換相互作用の観察

    Dey Shishir Kumar, Wang Zhipeng, Ali Md. Arafa, Shahed S.M., 荒船竜一, 米田忠弘

    日本物理学会 第79回次年次大会　2024/09/19

  17. Phthalocyanine Sensing with MoS2 Field Effect Transistor with Light Injection Toward Chemical Recognition Invited

    Tadahiro Komeda, Md Iftekharul Alam, Tsuyoshi Takaoka, Hiroki Waizumi, Muhammad Shamim Al Mamun

    International Conference on Porphyrins and Phthalocyanines-13　2024/06/27

  18. Electron Spin Resonance Measurement of a signale Molecule Magnet Terbium Ohthalocyanine(TbPC2) Adsorbed on Surfase Towards Quantum Computing Invited

    T. Komeda, R. Kawaguchi, K. Hashimoto, T. Kakudate, K. Katoh, M. Yamashita

    24. International Conference on Science and Technology of Synthetic Electronic Materials　2024/04/29

  19. 遷移金属ダイカルコゲナイドを材料に用いた電界効果トランジスタへの光援用による光応答電流のロックイン検出

    和泉 廣樹, 坂下 晃輔, 高岡 毅, Md.Nasiruddin, 佐藤 碧, 安藤 淳, 米田 忠弘

    第71回応用物理学会春季学術講演会　2024/03/25

  20. MXene薄片を用いたFETの電気伝導特性評価

    道祖尾 恭之, Md Nasiruddin, 高岡 毅, Saidur Rahman, 米田 忠弘

    第71回応用物理学会春季学術講演会　2024/03/23

  21. 銅ナフタロシアニン分子を吸着したMoS2-FETの光応答

    高岡 毅, 坂下 晃輔, 和泉 廣樹, 道祖尾 恭之, Liu Haotian, Chandra Devsharma Sushen, 安藤淳, 米田 忠弘

    第71回応用物理学会春季学術講演会　2024/03/25

  22. 超伝導－絶縁体－超伝導トンネル分光による単一近藤分子磁石のスピン特性の観測

    王智鵬, アリ アラファト, シェド モハマド, ファクルディン シャヘド, ゾン ペイウエン, 米田忠弘, 高岡毅

    日本物理学会 2024春季大会　2024/03/19

  23. RF Signal Injection into STM Tunneling Junction for Surface Spin Analysis Invited

    P. Zong, Ali Md Arafa, SMD Fakruddin, Z. Wang, R. Kawaguchi, T. Komeda

    ALC-W2024　2024/01/19

  24. RF Signal Injection into STM Tunneling Junction for Surface Spin Analysis

    P. Zong, Ali Md Arafa, SMD Fakruddin, Z. Wang, R. Kawaguchi, T. Komeda

    Surface-interface spectroscopy 2023　2023/12/20

  25. Chiral Helical Molecule Adsorption Configuration and Chiral-Induced Spin Selectivity Observed by STM/STS

    Md. Arafat Ali, Zhipeng Wang, Syed Mohammad, Fakruddin Shahed, Tadahiro Komeda

    Surface-interface spectroscopy 2023　2023/12/20

  26. Unveiling spin configurations of Kondo molecular magnet on superconductor surface with sub-molecular resolution

    Zhipeng Wang, Ali Md Arafa, SMD Fakruddin, Peiwen Zong, Tadahiro Komeda

    Surface-interface spectroscopy 2023　2023/12/20

  27. 液体アルコールによるMoS2-FET電気特性の変化

    高岡 毅, Md Nasiruddin, 和泉廣樹, 道祖尾恭之, 米田忠弘

    表面界面スペクトロスコピー2023　2023/12/20

  28. Electron Spin Resonance Measurement of a Single Molecule Magnet Terbium Phthalocyanine (TbPc2) Adsorbed on Surface

    T. Komeda, R. Kawaguchi, K. Hashimoto, T. Kakudate, K. Katoh, M. Yamashita

    ICQN2023　2023/10/11

  29. Controlling Photoisomerization and Thermal Reset of Azobenzene Molecules on the Channel of a MoS2 Field Effect Transistor

    Md Nasiruddin, Tsuyoshi Takaoka, Yasuyuki Sainoo, Hiroki Waizumi, Fatema Tul Afroz, Kosuke Sakashita, Aoi Sato, Atsushi Ando, Tadahiro Komeda

    The 84th JSAP Autumn Meeting 2023　2023/09/22

  30. 光学イメージングによるMXene薄片の厚さ識別

    道祖尾 恭之, Md Nasiruddin, 高岡 毅, Saidur Rahman, 米田 忠弘

    第84回応用物理学会秋季学術講演会　2023/09/20

  31. ドーパミン溶液/MoS2-FETの電気特性

    高岡 毅, Nasiruddin Md, 和泉 廣樹, 道祖尾 恭之, 安藤 敦, 米田 忠弘

    第84回応用物理学会秋季学術講演会　2023/09/22

  32. Photoisomerization and Thermal Reset of Trans- and Cis-Azobenzene Molecules on the Channel of a MoS2 Field Effect Transistor

    Tsuyoshi Takaoka, Md Nasiruddin, Fatema Tul Afroz, Tadahiro Komeda

    The Physical Society of Japan 2023 Annual (78th) Meeting　2023/09/19

  33. Electron Spin Resonance Measurement of an Adsorbed Single Molecule Magnet Terbium Phthalocyanine (TbPc2) Invited

    T. Komeda, R. Kawaguchi, K. Hashimoto, T. Kakudate, K. Katoh, M. Yamashita

    36th European Conference on Surface Science　2023/08/29

  34. Radical Spin of Single-molecule Magnet Characterized by STM-ESR and Yu-ShibaRusinov (YSR) State Observation Invited

    T. Komeda, R. Kawaguchi, K. Hashimoto, T. Kakudate, K. Katoh, M. Yamashita

    8th Conference on Spin Polarized STM and Nanoscale Magnetic Imaging　2023/06/09

  35. Phthalocyanine Molecule STM Investigation Invited

    T. Komeda, S.M.D. Shahed, F. Ara, K. Katoh, M. Yamashita

    CANBIC-8　2023/05/25

  36. 2次元層状物質を材料とした垂直積層型ヘテロ構造チャネルの電界効果トランジスタにおける電気特性および光応答性

    和泉 廣樹, 高岡 毅, 安藤 淳, Md. Nasiruddin, 坂下 晃輔, 佐藤 碧, 岡田 光博, 久保 利隆, 米田 忠弘

    第70回応用物理学会春季学術講演会　2023/03/17

  37. Doping behavior of tetracyanoquinodimethane (TCNQ) and 2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) on the MoS2-FET through microfluidic approach

    Nasiruddin Md, Kouki Waizumi, Tsuyoshi Takaoka, Kousuke Sakashita, Aoi Sato, Atsushi Ando, Tadahiro Komeda

    The 70th JSAP Spring Meeting 2023　2023/03/17

  38. Superconductor assisted detection of spin in Single molecule magnet (SMM) using scanning tunneling microscopy

    S.M.D. Shahed, F. Ara, K. Katoh, M. Yamashita, T. Komeda

    NAME-2023　2023/01/08

  39. Development of Chemical Recognition Function for MoS2 Field-Effect-Transistor (FET) Sensor Invited

    T. Komeda, T. Takaoka

    NAME-2023　2023/01/07

  40. An Integrated Microfluidic Approach for the Detection of Uric Acid through the Electrical Measurement of Atomically Thin MoS2 FET

    Md Nasiruddin, Hiroki Waizumi, Tsuyoshi Takaoka, Kosuke Sakashita, Aoi Sato, Tadahiro Komeda

    The 22nd Research Presentation Meeting, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University　2022/12/08

  41. An approach to generate constant-amplitude microwave transmission for photon-assisted STM in superconductors

    Zhipeng WANG, Shahed Syed Mohammad Fakruddin, Tadahiro Komeda

    The 22nd Research Presentation Meeting, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University　2022/12/08

  42. Microfluidic approach for the detection of uric acid through the electrical measurement of atomically thin MoS2 field-effect transistor

    Md Nasiruddin, Tsuyoshi Takaoka, Hiroki Waizumi, Kosuke Sakashita, Aoi Sato, Tadahiro Komeda

    14th International Symposium on Atomic Level Characterizations for New Materials and Devices '22　2022/10/18

  43. Investigation of the spin properties of the TbPc2 (single molecule magnet) molecules and its fragments on the superconductor (NbSe2) surface using STM and STS

    Syed Mohammad, Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Zhipeng Wang, Tadahiro Komeda

    14th International Symposium on Atomic Level Characterizations for New Materials and Devices '2　2022/10/19

  44. Property of MoS2-FET With Flowing Alcohol Fluid on the Channel

    Tsuyoshi Takaoka, Hiroki Waizumi, Nasiruddin, Yasuyuki Sainoo, Atsushi Ando, Tadahiro Komeda

    14th International Symposium on Atomic Level Characterizations for New Materials and Devices '22　2022/10/19

  45. Observation of Yu-Shiba-Rusinov State Originated from Magnetic Moment in Curved Monolayer Island of 1T-Phase NbSe2

    Syed Mohammad, Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Zhipeng Wang, Tadahiro Komeda

    14th International Symposium on Atomic Level Characterizations for New Materials and Devices '22　2022/10/18

  46. 二層グラフェン上に成長したVTe2薄膜の走査トンネル顕微鏡による構造観察

    道祖尾 恭之, 伊藤 拓馬, Zhipeng Wang, 米田 忠弘, 川上 竜平, 佐藤 宇史

    第83回応用物理学会 秋季学術講演会　2022/09/22

  47. MoS2-FET 電気特性に対する液相アルコールの効果

    高岡毅, 和泉廣樹, NasirUddin, 道祖尾恭之, 安藤 淳, 米田忠弘

    第83回応用物理学会 秋季学術講演会　2022/09/21

  48. Spin State of Single Molecule Magnet Contacted with Superconductor Surface for Quantum Information Process Invited

    Syed Mohammad, Fakruddin Shahed, Ryo Kawaguchi, Mohammad Ikram Hossain, Keiichi Katoh, Masahiro Yamashita, Tadahiro Komeda

    The 4th Asia-Pacific Symposium on Solid Surfaces　2022/09/20

  49. Observation of Yu-Shiba-Rusinov State Originated from Magnetic Moment in Curved Monolayer Island of 1T-Phase NbSe2

    Zhipeng Wang, Hossain Mohammad Ikram, Ara Ferdous, Shahed Syed Mohammad Fakruddin, Tadahiro Komeda

    The 22nd International Vacuum Congress　2022/09/14

  50. Study of VTe2 thin film grown on bi-layer graphene /SiC surface using scanning tunneling microscope

    Yasuyuki Sainoo, Takuma Ito, Zhipeng Wang, Tadahiro Komeda, Teppei Kawakami, Takafumi Sato

    The 22nd International Vacuum Congress　2022/09/13

  51. Photocurrent Spectra of CuPc-adsorbed MoS2-FET

    Tsuyoshi Takaoka, Md Iftekharu Alam, Hiroki Waizumi, Atsushi Ando, Tadahiro Komeda

    The 22nd International Vacuum Congress　2022/09/14

  52. Observation of Yu-Shiba-Rusinov States and Inelastic Tunneling Spectroscopy for Intra-Molecule Magnetic Exchange Interaction Energy of Terbium Phthalocyanine (TbPc) Species Adsorbed on Superconductor NbSe2

    Tadadhiro Komeda, Syed Mohammad, Fakruddin Shahed, Ferdous Ara, Mohammad Ikram Hossain, Keiichi Katoh, Masahiro Yamashita

    The 22nd International Vacuum Congress　2022/09/14

  53. Atomic-Scale Analysis of Spin State of Single Molecule Magnet Bis(phthalocyaninato)terbium(III) (TbPc2) Adsorbed on Superconductor Surface Invited

    Tadahiro Komeda, Masahiro Yamashita, Keiichi Katoh

    The 12th International Conference on Porphyrins and Phthalocyanines　2022/07/15

  54. A combined microfluidic system for selective and real-time detection of TCNQ and F4-TCNQ on the channel of atomic layer MoS2 field effect transistor

    Md. Nasiruddin, Kosei Takahashi, Hiroki Waizumi, Tsuyoshi Takaoka, Atsushi Ando, Tadahiro Komeda

    The 69th JSAP Spring Meeting 2022　2022/03/22

  55. アルコール流体存在下におけるMoS2-FETの電気特性

    高岡 毅, 高橋 巧成, 和泉 廣樹, Uddin Nasir, 道祖尾 恭之, 安藤 淳, 米田 忠弘

    第69回応用物理学会春季学術講演会　2022/03/22

  56. ingle-molecule magnets adsorbed on ferromagnetic and superconductor Invited

    Tadahiro Komeda

    Pacifichem2021　2021/12/21

  57. Hybridized Kondo State of π radical assemblies created by atomic-manipulation Invited

    Tadahiro Komeda

    Pacifichem2021　2021/12/20

  58. Energy of the exchange interaction between radical ligand and metal 4f of SMM TbPc2 on superconductor NbSe2

    Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Tadahiro Komeda

    Surface Interface Spectroscopy 2021　2021/12/10

  59. フタロシアニン系分子/MoS2-FETの光応答スペクトル

    高岡 毅, Md Iftekharul Alam, 和泉 廣樹, 高橋 巧成, Nasir Uddin, 道祖尾 恭之, 安藤 淳, 米田 忠弘

    表面・界面スペクトロスコピー2021　2021/12/10

  60. Sensor Behavior of Multilayer MoS2 Field Effect Transistor Doped by Formaldehyde Solution

    Nasiruddin Md, Mamun Muhammad Shamim Al, Kosei Takahashi, Hiroki Waizumi, Tsuyoshi Takaoka, Alam Iftekharul Md, Atsushi Ando, Tadahiro Komeda

    Surface Interface Spectroscopy2021　2021/12/10

  61. Metal spin detection of TbPc2 SMM on Co deposited NbSe2 substrate

    Ferdous Ara, Hossain Mohammad Ikram, SMF Shahed, Tadahiro Komeda

    Surface Interface Spectroscopy 2021　2021/12/10

  62. Development of Spin Detection System with Superconductor Photon Assisted Tunneling (SC-PAT)

    MI. Hossain, F. Ara, SMF. Shahed, T. Komeda

    29th International Colloquium on Scanning Probe Microscopy

  63. STM-IETS measurement of exchange interaction energy of radical ligand and metal 4f of SMM TbPc2 on superconductor NbSe2

    Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Tadahiro Komeda

    29th International Colloquium on Scanning Probe Microscopy

  64. Functionalization of Two-Dimensional MoS2 by Formaldehyde molecule Through Microfluidic Channel

    Md. Nasiruddin, Muhammad Shamim Al Mamun, Kosei Takahashi, Hiroki Waizumi, Tsuyoshi Takaoka, Md Iftekharul Alam, Atsushi Ando, Tadahiro Komeda

    2021/12/09

  65. Observation of Yu-Shiba-Rusinov State Enhancement for TbPc2/NbSe2 with Tb Nucleus Spin Resonance

    Ferdous Ara, Hossain Mohammad Ikram, SMF Shahed, Tadahiro Komeda

    29th International Colloquium on Scanning Probe Microscopy　2021/12/10

  66. Development of Chemical Recognition Function for MoS2 Field-Effect-Transistor (FET) Sensor Invited

    Tadahiro Komeda

    The 11th International Symposium of Gunma University Initiative for Advanced Research(GIAR)　2021/11/24

  67. 走査プローブ顕微鏡を用いた二次元層状化合物の基礎とデバイス応用 Invited

    米田忠弘

    ナノ科学シンポジウム2021　2021/11/22

  68. Spectra of the Photocurrent of CuPc-adsorbed MoS2-FET

    Tsuyoshi Takaoka, Md Iftekharul Alam, Hiroki Waizumi, Kosei Takahashi, Muhammad Shamim Al Mamun, Atsushi Ando, Tadahiro Komeda

    AOSMEA-X　2021/10/25

  69. UV/Thermally Induced Isomerization of Nitro-Spiropyran on MoS2 Lattice Observed by MoS2 Field Effect Transistor

    Muhammad Shamim Al Mamun, Yasuyuki Sainoo, Tsuyoshi Takaoka, Hiroki Waizumi, Zhipeng Wang, Md Iftekharul Alam, Kosei Takahashi, Atsushi Ando, Ryuichi Arafune, Tadahiro Komeda

    AOSMEA-X　2021/10/25

  70. Development of multi antenna scanning tunneling microscope for electron spin resonance

    Ryo Kawaguchi, Tadahiro Komeda

    The 5th Symposium for The Core Research Clusters for Materials Science and Spintronics, and the 4th Symposium on International Joint Graduate Program in Materials Science　2021/10/25

  71. Spin State of Single Molecule Magnet Adsorbed on Superconducting NbSe2 Surface Using Scanning Tunneling Microscopy Invited

    Tadahiro Komeda

    AOSMEA-X　2021/10/25

  72. Low-temperature scanning tunneling microscopy of VTe2 atomic layer

    Zhipeng Wang, Tappei Kawakami, Takuma Ito, Syed Mohammad Fakruddin Shahed, Katsuaki Sugawara, Takafumi Sato, Katsushi Hashimoto, Tadahiro Komeda

    The 5th Symposium for core Research Clusters for Materials Science and Spintronics, and the 4th Symposium on International Joint Graduate Program in Materials Science　2021/10/26

  73. Superconductor photon assisted tunneling (SC-PAT), An experimental development of spin detection system with microscope capability

    Mohammad Ikram Hossain, Ferdous Ara, Syed Mohammad Fakruddin Shahed, Tadahiro Komeda

    13th International Symposium on Atomic Level Characterizations for New Materials and Devices '21　2021/10/19

  74. Probing the local spin states of the Metal Phthalocyanine (TbPc) molecules and their assembly on superconducting NbSe2 surface

    Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Tadahiro Komeda

    13th International Symposium on Atomic Level Characterizations for New Materials and Devices '21　2021/10/19

  75. Spectral change of photocurrent of CuPc-adsorbed MoS2-FET

    Tsuyoshi Takaoka, Md Iftekharul Alam, Hiroki Waizumi, Atsushi Ando, Tadahiro Komeda

    13th International Symposium on Atomic Level Characterizations for New Materials and Devices '21　2021/10/20

  76. Cobalt assisted Kondo detection of 4f spin of TbPc2 SMM on superconducting substrate, NbSe2

    Ferdous Ara, Hossain Mohammad Ikram, Syed Mohammad, Fakruddin Shahed, Tadahiro Komeda

    13th International Symposium on Atomic Level Characterizations for New Materials and Devices '21　2021/10/19

  77. Observation of Large Difference of Doping Behavior of TCNQ and F4-TCNQ on MoS2-FET

    Hiroki Waizumi, Muhammad Shamim Al Mamun, Tsuyoshi Takaoka, Md Iftekharul Alam, Yudai Tanaka, Atsuhsi Ando, Zhipeng Wang, Ryuichi Arafune, Tadahiro Komeda

    13th International Symposium on Atomic Level Characterizations for New Materials and Devices '21　2021/10/20

  78. Changes in Electrical Properties and Surface Conditions due to Molecular Adsorption on MoS2 Surface

    The 82nd JSAP Autumn Meeting 2021　2021/09/23

  79. Coexistence of Kondo effect and Yu–Shiba–Rusinov (YSR) State in TbPc2/Co/NbSe2

    Ara Ferdousa, Hossain Mohammad Ikram, SMF Shahed, Komeda Tadahiroa

    The Physical Society of Japan 2021 Autumn Meeting　2021/09/23

  80. Variation of the energy of spin flip excitation depending on the adsorption configuration of terbium phthalocyanine on superconducting substrate adsorbed on superconducting NbSe2

    Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossai, Ferdous Ara, Tadahiro Kome

    The Physical Society of Japan 2021 Autumn Meeting　2021/09/20

  81. Strain Induced Magnetic Moment detected by Observing Yu-Shiba-Rusinov (YSR) State in 1T-Phase Island on Cleaved NbSe2 Surface

    Mohammad Ikram Hossain, Syed Mohammad, Fakruddin Shahed, Ferdous Ara, Tadahiro Komed

    The Physical Society of Japan 2021 Autumn Meeting　2021/09/20

  82. Optical response of exfoliated MoS2 FETs in gaseous atmosphere

    2021/09/23

  83. CuPc, CoPc, H2Pc分子を吸着したMoS2-FETの光応答

    高岡 毅, Md, Iftekharul Alam, 和泉 廣樹, 高橋 巧成, Muhammad, Shamim Al Mamun, Nasir Uddin, 道祖尾恭之, 米田 忠弘

    第82回 応用物理学秋季 学術講演会　2021/09/13

  84. アルコール中における二硫化モリブデン FET の動作特性

    高岡毅, 田中悠太, 和泉廣樹, 高橋巧成, Md IftekharulAlam, Muhammad, Shamim AlMamun, 道祖尾恭之, 米田忠弘

    第68回応用物理学会春季学術講演会　2021/03/19

  85. Photo Enhanced Electrical Properties of Organic Dye Doped MoS2 FET Sensor

    Md Iftekharul Alam, Tsuyoshi Takaoka, Hiroki Waizumi, M. Shamim Al Mamun, Yudai, Tanaka, Kosei Takahashi, Tadahiro Komeda, Atsushi Ando

    The 68th JSAP Spring Meeting 2021　2021/03/19

  86. Electrical conduction characteristic change in MoS2 FET in the gas environment

    2021/03/19

  87. Radio Frequency (RF) caused Splitting of Bogoliubov Quasiparticles in NbSe2

    Mohammad Ikram Hossain, Ferdous Ara, Syed Mohammad Fakruddin Shahed, Tsuyoshi Takaoka, Tadahiro Komeda

    The Physical Society of Japan 76th Annual Meeting

  88. Observation of Yu-Shiba-Rusinov (YSR) states in single molecule magnet adsorbed on superconducting NbSe2

    Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Tadahiro Komeda

    The Physical Society of Japan 76th Annual Meeting　2021/03/12

  89. Bis(phthalocyaninato) Terbium (III) (TbPc2), a Single Molecule Magnet on Superconductor NbSe2 Showing Coexistence of Kondo Screening and Yu–Shiba–Rusinov (YSR) States

    Hossain Mohammad Ikram, Ferdous Ara, S.M.F. Shahed, T. Takaoka, T. Komeda

    The 1st Asian Conference on Molecular Magnetism 1st ACMM online, JAPAN

  90. Competing Kondo Screening and Yu–Shiba–Rusinov (YSR) State Observed for TbPc2 on Superconducting NbSe2

    Ferdous Ara, Mohammad Ikram Hossain, Syed Mohammad, Fakruddin Shahed, keichii Katoh, Masahiro Yamashita, Tadahiro Komeda

    The 1st Asian Conference on Molecular Magnetism, 1st ACMM online, JAPAN　2021/03/08

  91. Single-Molecule Magnets Adsorbed on Ferromagnetic and Superconductor Substrates Invited

    Tadahiro Komeda

    The 1st Asian Conference on Molecular Magnetism 1st ACMM online, JAPAN　2021/03/08

  92. An Experimental Approach to Probe the Local Spin of Bis(Phthalocyaninato) Terbium (III), (TbPc2) Magnetic Impurities on Superconductor (NbSe2)

    H.M. Ikram, Ferdous Ara, S.M.F. Shahed, T. Takaoka, T. Komeda

    28th International Colloquium on Scanning Probe Microscopy (ICSPM28)　2020/12/10

  93. Probing the Local Spin of Gear Like Assembly of Metal Phthalocyanine Molecules on Superconductor surface

    Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Tadahiro Komeda

    28th International Colloquium on Scanning Probe Microscopy (ICSPM28)　2020/12/10

  94. Coexistence of Kondo Screening and Yu–Shiba–Rusinov (YSR) States for the Spin System of TbPc2 on Superconducting NbSe2

    Syed Mohammad Fakruddin Shahed, Mohammad Ikram Hossain, Ferdous Ara, Tadahiro Komeda

    14th Surface Interface Spectroscopy 2020　2020/12/04

  95. Position-controlled chemical vapor deposition growth of large continuous MoS2 films

    Hiroki Waizum, Atsushi Ando, Tadahiro Komeda, Toshifumi Irisawa

    33rd International Microprocesses and Nanotechnology Conference (MNC 2020)　2020/11/09

  96. Tunable Optical Properties of Copper Phthalocyanine Molecules Adsorbed on MoS2 Based Field Effect Transistor

    Md Iftekharul Alam, Tsuyoshi Takaoka, Hiroki Waizumi, M. Shamim Al Mamun, Yudai Tanaka, Tadahiro Komeda

    The Physical Society of Japan 2020 Autumn Meeting　2020/09/11

  97. Observation of magnetic bistable state of 4-(2′-benzimidazolyl)-1,2,3,5-dithiadiazolyl (HbimDTDA) radical molecule adsorbed on Au (111) surface using STM / STS

    Md Sohel Ahommed, S.M. Fakruddin Shahed, Mohammad Ikram Hossain, Kathryn E. Preuss, Tadahiro Komeda

    The Physical Society of Japan 2020 Autumn Meeting　2020/09/08

  98. MoS2-FET Operated Under the Fluids and Drops

    The Physical Society of Japan 2020 Autumn Meeting　2020/09/11

  99. Observation of Electronic State Change of MoS2 Surface by Molecular Adsorption using UV Photoelectron Spectroscopy

    Hiroki Waizum, Yudai Tanaka, Kousei Takahashi, Md Iftekharul Alam, Muhammad, Shamim Al Mamun, Tsuyoshi Takaoka, Tadahiro Komeda

    The Physical Society of Japan 2020 Autumn Meeting　2020/09/11

  100. Microfluidic Tank Engineeering and Functionalization of Two Dimensional MoS2 by Nicotine

    Muhammad Shamim Al Mamun, Yudai Tanaka, Hiroki Waizumi, Tsuyoshi Takaoka, Zhipeng Wang, Md Iftekharul Alam, Atsushi Ando, Tadahiro Komeda

    The Physical Society of Japan 2020 Autumn Meeting　2020/09/11

  101. Exploring the Yu–Shiba–Rusinov (YSR) State Caused by Single-Molecule Magnet, Bis(phthalocyaninato)terbium (III) (TbPc2) on Superconducting NbSe2)

    Hossain Mohammad Ikram, Ferdous Ara, S.M.F. Shahed, T. Takaoka, T. Komeda

    The Physical Society of Japan 2020 Autumn Meeting　2020/09/10

  102. Microfluidic Tank Assisted Nicotine Sensing Property of Atomically Thin Two-Dimensional MoS2-Field Effect Transistor

    Muhammad Shamim Al Mamun, Yudai Tanaka, Hiroki Waizumi, Tsuyoshi Takaoka, Zhipeng Wang, Md Iftekharul Alam, Atsushi Ando, Tadahiro Komeda

    Molecular Architechtronics-2020　2020/07/24

  103. Surface Charge Transfer Doping of MoS2 by Melamine and Caffeine: Investigated by the Back Gated Multilayer MoS2-Field Effect Transistors

    Muhammad Shamim Al Mamun, Hiroki Waizumi, Tsuyoshi Takaoka, Md, Iftekhar Alam, Yudai Tanaka, Tadahiro Komeda

    International Conference on Recent Advances in Chemistry　2020/02/07

  104. X-ray Photoelectron Spectroscopy and Scanning Tunneling Microscopy Study of Lanthanide Phthalocyanine

    Hossain Mohammad Ikrama, Islam Saifula, S.M.F, Shahed,T. Takaoka, T. Komeda

    2019 Autumn Meeting, The Physical Society of Japan　2019/09/13

Show all Show first 5

Research Projects 20

  1. Detection and Control of the Spin Flow of Chimera Superconductor-Molecule Interface using ESR-STM Instruments with RF Injection

    Tadahiro Komeda

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Transformative Research Areas (A)

    Institution: Tohoku University

    2025/04 - 2027/03

  2. Development of Magnetic Microscopy using RF Photon Assisted Tunneling between Superconductor Electrodes

    Shahed SyedMohammadFakruddin, 米田 忠弘

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 東北大学

    2021/04/01 - 2024/03/31

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    We aimed to develop a detection technique using the Super Conductor Photo Assisted Tunneling (SC-PAT) to obtain the information of the spin properties with atomic scale resolution. For that purpose, we investigated the spin properties of the terbium phthalocyanine (TbPc2) species and its fragments adsorbed on superconductor NbSe2 surface using scanning tunneling microscopy and spectroscopy. We deposited TbPc2 species on the surface of the superconductor NbSe2. In the STM image we found the robust TbPc2 and its fragments (TbPc, Pc) on the NbSe2 surface. We measured Yu-Shiba-Rusinov (YSR) states caused by the interaction between the superconducting state and magnetic impurity for the TbPc2 and TbPc species at below 1 K. Inelastic tunneling spectroscopy (IETS) for the spin excitation at sub 1 K were measured to detect spin properties when magnetic impurities interact weakly with the substrate and caused no YSR. In addition, the exchange interaction energy (Eex) between the spins of the radical ligand (Pc) and the center 4f metal atom (Tb3+) is determined by using the IETS technique. Eex is a critical parameter that determines the blocking temperature below which it behaves as SMM. We detected high precision sub millielectronvolt spatial energy variation of the Eex within the single molecule which are attributed to the bonding configuration of TbPc.

  3. 層間磁気結合による単分子磁石の磁気モーメントの制御

    岡 博文, 米田 忠弘

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2021/04/01 - 2024/03/31

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    本研究の目的は、強磁性/非磁性/強磁性の金属多層膜で用いられる「層間磁気結合」を応用することで、単分子磁石に働く磁気結合の強さの制御法を確立することである。そこで、まず磁気結合の強さを調整できる基板の作製に取り組み、その表面構造を走査トンネル顕微鏡（STM）により明らかにした。次に、得られた基板に単分子磁石を吸着し、その吸着構造を明らかにした。具体的には、以下の項目に取り組んだ。 （1）磁気結合の強さを調整できる基板の作製 Au(111)基板の清浄化、Coの蒸着、Auの蒸着、それぞれの項目毎にSTM観察を行った。その結果、Au(111)に特徴的なヘリンボーン構造と原子像の観察に成功し、Au(111)清浄面が得られていることを確認した。その後、Coを蒸着し、三角形状をもつ2原子層高さのCoアイランドがヘリンボーン構造の“エルボー”に周期的に形成されることを確認した。続けてAuを蒸着し、Auの蒸着量によりどのようにCo / Au(111)の表面がAuに覆われていくのかを明らかにした。この結果から、Auの蒸着量を調整することにより、Coと単分子磁石の間に挿入するAuの膜厚を調整できると考えられる。 （2）単分子磁石TbPc2の蒸着 上記（1）で作製したAu / Co / Au(111)基板に単分子磁石TbPc2を室温で蒸着しその吸着構造をSTM観察により明らかにした。Au(111)基板上と同様に、TbPc2はAu / Co / Au(111)基板上を拡散し、Au(111)やCoアイランドのステップエッジに多く吸着することがわかった。また、Auのテラス部分に吸着するTbPc2も小数であるが確認することができた。

  4. Development of Spin Coherent Microscopy with Time and Space Resolutions Dedicated for Quantum Information Processes

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (S)

    Institution: Tohoku University

    2019/06/26 - 2024/03/31

  5. Exproration of 4f spin signals by STM and magnetic properties of Lanthanoid atoms and molecules by STM

    Tsukahara Noriyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Gunma National College of Technology

    2018/04/01 - 2021/03/31

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    In this study, the detection of 4f-spin signals by STM was confirmed. Mainly, double-decker Tb phthalocyanine (TbPc2) molecules are focused and adsorbed on superconducting the NbSe2 surface. As a result, not only TbPc2 molecules but dissociated species are found, and they clearly show spin signals. TbPc2 molecules and one of the dissociated species shows YSR states, and another dissociated species shows spin-excitation signals. <BR> To unveil the above results, we carried out experiments and DFT calculation for Mn phthalocyanine molecules which has d-spin on the superconducting two dimensional In layer on Si(111). As a result, YSR state could be observed. In addition, superconductivity of In layer are quenched by adsorption when covering the surface with about 7 % of the In surface.

  6. Time-resolved SP-STM study of spin dynamics in ferromagnetic nanostructures

    Oka Hirofumi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2017/04/01 - 2020/03/31

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    In order to investigate spin relaxation processes in ferromagnetic nanostructures, we established nanostructures with simple spin-dependent electronic states and spin-polarized scanning tunneling microscopy (STM) with temporal resolution. Co nanostructures with triangular shape were formed on Cu(111) substrate, followed by sequential deposition of Fe, Ni, or Ag. This procedure resulted in the formation of a core-shell type of nanostructures that Co was surrounded by other materials. Spin-polarized STM measurements revealed that Co nanostructures exhibited two free-electron like spin-polarized surface states. Analyses on the energy width of discrete free-electron like states implied that the spin relaxation time was longer for core-shell type nanostructures than for pure Co nanostructures.

  7. Development of Hydrogen Bonding Microscope Utilizing Local Vibrational Spectroscopoy

    Komeda Tadahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Tohoku University

    2017/06/30 - 2019/03/31

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    The vibration spectroscopy is one of the major chemical analysis techniques, which can reveal not only the functional group of the molecule, but also the bonding nature of the crystal. The hydrogen bonding is a critical interaction between molecules which determines the structure of the molecule assembly. In this work we develop a technique to map the hydrogen bonding using the scanning probe microscopes. Instead of observing the morphology of the crystal, we focus on obtaining the inelastic component of the tunneling current. By detecting the vibration mode corresponding to the O-H stretching mode with the effect of the formation of the hydrogen bonding, we successfully mapped the spatial distribution of the hydrogen bonding.

  8. Study on catalytic activity of oxide surface using single molecule labeling and spin polarized tunneling electron spectroscopy

    Komeda Tadahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2016/04/01 - 2019/03/31

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    For the chemical reactions on the surfaces, including catalytic reactions, some special sites of the surface like as the lattice defects play a critical role in the determination of the reaction path. However, the ratio of the number of defects against the total number of the surface atoms is tiny, which makes the chemical analysis difficult. STM can give local structure and electronic information. However, compare to the topography and the LDOS information, the spin information provided by ESR and NMR can give us higher sensitivity. In this research, we developed the techniques to identify the spin state of the molecules adsorbed on the surface.

  9. Study of spin dynamics of single molecule magnet at interface

    Komeda Tadahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: Tohoku University

    2013/06/28 - 2018/03/31

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    This group has set the research target on the designing, characterization and control of surfaces, which should provide infrastructure of the 'molecular architect'. Special attentions have been paid for the phenomena formed by the interaction between the molecular spins and the conduction electron. We have demonstrated that the Kondo resonance, which is a spin-screening effect of the conduction electrons for an isolated spin, can be used as a useful technique for characterizing the spin of magnetic molecules. This has been shown for the cases of the Cu corrole molecule and the porphyrin double-decker complex of Tb atom. For the latter, we showed that a dehydrogenation can switch ON/Off of the single molecule magnet (SMM) properties. In addition, we have developed spin-polarized STM (SP-STM) to characterize the direction of the spin in nano materials. This has been applied for the determination of the magnetic anisotropic energy (MAE) of Co bilayer film on Au(111) surface.

  10. Molecular Architectonics: Orchestration of Single Molecules for Novel Functions

    TADA Hirokazu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: Osaka University

    2013/06/28 - 2018/03/31

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    We promoted joint studies by researchers in molecular design / synthesis, surface physics, molecular nanotechnology, semiconductor physics, information technology and theoretical physics, and published 591 papers on the following topics: (1) Precise design of molecules and molecular aggregates, (2) Structure and electronic state molecules on various electrodes, (3) Guiding principles for single molecular junctions showing nonlinear / asymmetrical current-voltage characteristics and switching characteristics by electric and magnetic field, and (4)Preparation of stochastic resonance devices utilizing the inherent noise of the element and the self-pulsating induced by voltage application. These results greatly contribute to progress in the field of single molecular electronics and open up research strategies on novel memory and computing systems based on molecular networks.

  11. Nanoscale control of physical properties of grapheen by site-selective epitaxy of graphene using substrate microfabrication

    FUKIDOME Hirokazu, KAWAI Yusuke, KOTSUGI Masato, KOMEDA Tadahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2011/04/28 - 2015/03/31

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    Graphene is a promising next-generation device material. To realize graphene-based devices, it is significant to utilize unique characters of graphene physical properties. We have therefore performed a study on a nanoscale control of structural and electronic properties of graphene by using substrate microfabrication. In this study, we formed graphene on SiC thin films on a microfabricated Si substrate. The interface structure of graphene thus formed depends on the microscopic crystallographic orientation of the substrate. As a result of this, we found that the stacking and therefore band structure of graphene is controlled by this method.

  12. Spin Detection and Manipulation for a Single-Molecule-Magnet withAtomic Resolution

    KOMEDA Tadahiro, KATOH Keiichi, HAMADA Ikutaro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2010 - 2012

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    We successfully controlled the spin state of a single-molecule-magnet by changing the conformation of the molecule. The molecule of bis(phthalocyaninato) terbium(III) complex (TbPc_2)) is composed of two phthalocyanine (Pc) ligand sandwiching a Tb metal atom. We rotated therelative angle between two Pc's and switched the spin of the ligand on/off.

  13. The Study of Molecular Friction on Surfaces

    TAKAOKA Tsuyoshi, KOMEDA Tadahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2009 - 2011

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    We have studied the friction applied to the molecules on surfaces, which is related with adsorption processes and diffusion processes of molecules so that is very important in the view point of basic sciences. We have tried to observe the mechanisms of molecular friction by using supersonic molecular beam apparatus, spectroscopic method and scanning tunneling microscopy techniques. We have observed migration of NO molecule adsorbed on stepped surface of platinum single crystal since NO reactions on Pt surfaces are related with many catalytic reactions, then, we could observe many phenomena of NO migration and obtain many properties of the migration. In addition, we have develop the technique of using the scanning tunneling microscopy to detect microscopically the migration of molecules on surfaces.

  14. 金属原子-有機分子が形成する表面supra-moleculeの観察と物性測定

    米田 忠弘, ZHANG Yan-Feng, ZHANG Yan-FENG

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特別研究員奨励費

    Institution: 東北大学

    2007 - 2009

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    フタロシアニン分子(Pc)を配位子とし、希土類イオンを磁性中心としてもつ分子には、いわゆる「単分子磁石」としての特性を発するものがあり、単一分子による磁気記録等の応用から近年注目を集めている。最近ではTbPc2で×"の変化が40-50Kという高温で観察されている。これら大きな磁化反転障壁をもった分子の磁性が、表面に吸着した状態でどのような振る舞いを示すか興味が持たれる。しかしながら、金属イオンが二つのフタロシアニン配位子によって上下からはさみこまれた形の錯体についてのSTM観察の報告は多くない。本研究ではLnPc2分子について、超高真空極低温(~4.8K)において単一分子の磁性の評価を行うため、フェルミ準位付近でSTS測定を行った。LnはTb,Dyを用いた。比較のため磁性をもたないYPc2についても同様の測定を行った。 実験は超高真空で清浄化されたAu(111)表面上に分子をタンタルボートから加熱蒸着したものを用いた。孤立する2種の(4lobe,8lobe)孤立分子が観察された。図にはTbPc2を蒸着した揚合の4lobe分子のSTM像を示す。中心位置でSTSを測定したところ、フェルミ準位近傍で磁性に由来すると思われるピークが観測されたが、分子中心金属がDyおよびYの場合にはこれらのピークは観察されなかった。本発表ではこのピークと磁性、また希土類イオンのf軌道との関係については研究例が少なく、新しい分野を開拓する分野であると考える。

  15. Characterization of the molecule bridging nano-link electrodes byusing scanning probe microscope

    TADAHIRO Komeda, TAKAOKA Tsuyoshi, SAINOO Yasuyuki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Priority Areas

    Institution: Tohoku University

    2005 - 2009

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    Electron conductance through a single molecule has attracted attentions because it is possible to control structures, electronic states and functional groups of the molecules. In spite of intensive studies, there are many questions left unanswered. In this study, we tried to measure the path by detecting vibrational modes of the molecules which are caused by the current. We employed scanning tunneling microscope (STM) setting for this purpose, in which the substrate metal surface is an electrode and the STM-tip is the other electrode. The results showed that almost complete vibrational signals of the alkanethiol molecule can be detected. The result was compared with a density-functional calculation, which shows an excellent agreement. In addition, we have found that a certain portion of the current are hopping between neighboring molecules, instead of confined in a single molecule from one electrode to the other.

  16. Dissipation of translational energy of molecules on surfaces

    TAKAOKA Tsuyoshi, KOMEDA Tadahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2006 - 2007

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    In 2006, we have performed the experiment about the adsorbate diffusion on solid surfaces by using super sonic molecular beam apparatus combined with ultra high vacuum chamber. From the analysis of the Fourier transformed infrared spectra obtained after a stepped Pt(997) surface was exposed to CO molecules and subsequently to energy-controlled Ne or Ar atoms, the activation energy of the diffusion of CO adsorbed at terrace site and step site were obtained. In 2007, we examined the mechanism of the relaxation of the translational energy of adsorbates on surfaces during the diffusion process by the use of collision induced diffusion phenomena as follows: After a Pt(997) surface was exposed to CO molecules with a coverage of 0.033 ML, it was exposed to Ne or Ar atoms with a translational energy. If the friction applied to CO molecules at terrace site is low, they can migrate long distances after a collision imparts a sufficiently high kinetic energy. If the friction is large, they will stop immediately after the collision. Then, the friction can be estimated from the distribution of CO molecules after the collision with rare gas atoms. However, since the translational energy of CO molecule and its direction depend on the arrangement of the CO molecule and the rare gas atom upon the collision, we employed molecular dynamics calculation and the calculational results were compared with experimental results. From the comparison, the friction coefficient of CO on the Pt surface was estimated to be 8x10^<12> sec^<-1>.

  17. STM非弾性トンネル分光を用いた分子極微構造の化学分析

    道祖尾 恭之, 米田 忠弘

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特定領域研究

    Institution: 東北大学

    2005 - 2006

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    本特定領域研究では極微領域での化学種分析が1つのテーマとなっており、とりわけ第2班は固液界面で成長する分子の微小な構造体について化学分析を行うことが求められている。本研究では、空間極限での振動分光である走査トンネル顕微鏡(STM)を用いた非弾性トンネル分光(IETS)に関連した手法を固液界面の研究に応用する。そのために、STM-IETSのさらなる高精度化を図るとともに、固液界面での分子集合体の状態変化を固定化しスナップショットを観察するために必要な機器開発を行うことを目的とした。 本年度の成果は以下の通りである。まず、固液界面での分子集合体の状態変化を固定化しスナップショットを観察するために必要な試料搬送システムと自作STMユニットを開発した。これらを既存の真空槽に組み込み、極低温(〜10K)で動作する装置を製作した。また、コントロールユニットに、STM-IETS測定の高精度化を目的として自動分子追跡の機能を組み込んだ。さらに、分子集合体である自己組織化膜(SAM)は、単一分子とは異なる物性を示す。STMを用い、最も単純なアミノ酸であるGlycineをCu(100)表面に吸着させた際に現れる自己組織化膜の電子構造を詳しく調べたところ、表面電子状態密度の長距離にわたる変調が観察された。自己組織化膜はp(2x4)構造をもった領域が最も安定で、これは分子の持つ極性とキラル構造とから生じると考えられる。発現した電子状態密度の変調は異方性をもち、電子派の干渉による定在波としてdI/dV像で観察された。

  18. Surface reaction control by the use of Laser detonation and STM observation

    TAKAOKA Tsuyoshi, KOMEDA Tadahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2004 - 2005

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    The object of this research is the chemical reaction control by the use high-speed beam of atoms and molecules prepared with Laser detonation technique. To perform the experiment, inlet of gaseous atoms and molecules, Laser detonation apparatus, STM apparatus to observe the surface reaction, and UHV chamber are required. Among them, Laser detonation apparatus and STM were developed in the research. 1. Laser detonation apparatus Laser detonation apparatus is composed of Laser source, mirrors to adjust the Laser direction, a focusing mirror to focus the Laser, gas vessel with a nozzle, pipes through which gases are led. The translational energy of atoms and molecules are measured from the time difference between Laser discharge and time of the arrival of the molecule at the mass spectrometer. Timing control system was developed to measure the time of the arrival of the molecule at the mass spectrometer. 2. STM The species, structure and position of the molecule on the surface after the sample surface is irradiated with high-speed molecules are observed with STM. Position where high-speed molecules are incident on and STM area should be overlapped to observe the STM image after the sample surface are irradiated with the molecules. So, we came up with some ideas. Moreover, piezoelectric parts, which play a very important role in STM system, are easily affected by vibrational noise. However, the noise from pumps is more than we expected. So we came up with some ideas to suppress the noise.

  19. 金属表面に吸着した分子の表面拡散と分子間相互作用

    川合 真紀, 小笠原 寛人, 南任 真史, 米田 忠弘, 加藤 浩之

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特定領域研究(A)

    Institution: 理化学研究所

    2000 - 2001

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    Pd(110)表面に吸着した個々の分子を標的に、STM探針からトンネル電子を注入することにより、吸着分子の振動状態を励起することができ、それにより、個々の分子の振動分光、振動励起状態を経由しての化学反応が進行することを示した。具体的には、CO分子の伸縮振動の励起状態を経由して、吸着サイト間のホッピングが起こることが分かり、この現象の鍵となるのは、振動モード間の非調和カップリングの大小であることを明瞭に示した。また、トランス2ブテンの脱水素反応が、CH伸縮振動の多段励起を経由して起こることが分った。このように、単一分子の振動励起により、物質変換や物質移動が実現することを明瞭に示した。これらの現象を通じて、化学反応の進行に対して定量的な考察が得られたことは物質変換の基本的な現象理解に多くの知見を与える結果となった。単一分子を標的とした化学反応はこれまでにも報告例はあるが、振動励起状態を中間体とする反応を明確に示せたこと、また、振動励起状態からの緩和過程が反応の鍵となることを明確に示したことにより個々の分子の反応制御にあらたなブレークスルーがもたらされた。

  20. 金属表面に吸着した分子の表面拡散と分子間相互作用

    川合 真紀, 小笠原 寛人, 南任 真史, 米田 忠弘, 岸 令子

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特定領域研究(A)

    Institution: 理化学研究所

    1999 - 1999

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    吸着分子の構造を支配する因子は大別すると、吸着分子と基板間の相互作用、吸着分子間の相互作用、そして基板原子の変位などにより誘起される状態によるものが挙げられる。固体表面に吸着している分子は基板となる表面の吸着サイトにより、その吸着状態が異なる。全系の吸着エネルギーに最も大きく寄与するのは、吸着分子と基板間の相互作用なので、自由空間に配置された分子に比べ、取り得る分子間距離が制限される。全系の安定性に寄与するこれら相互作用の本質を理解するには、吸着分子間の相互作用を定量的に解析し、支配因子を明らかにすることが不可欠である。平成11年度の研究では、Pd(110)上に吸着したCO分子を取り上げ、振動状態の分散から、飽和吸着状態で、吸着分子間に働く反発的相互作用を定量的に見積もった。また、高被覆率領域に於いて観測される被覆率に依存した吸着分子の周期構造の形成には、この反発的相互作用の起源である、吸着分子間の立体障害が大きな役割を演じており、反発的な相互作用を緩和する方向に分子は周期的に配列することが明らかになった。

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