Details of the Researcher

PHOTO

Susumu Yamamoto
Section
International Center for Synchrotron Radiation Innovation Smart
Job title
Professor
Degree

  • 博士（理学）（東京大学）

  • 修士（理学）（東京大学）

e-Rad No.
50554705
Researcher ID
C-1584-2008

Research History 9

  • 2025/06 - Present
    Tohoku University　International Center for Synchrotron Radiation Innovation Smart　Professor

  • 2025/06 - Present
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Professor

  • 2024/10 - Present
    JST PRESTO　"Material Conversion" Project　Researcher

  • 2020/10 - 2025/05
    Tohoku University　International Center for Synchrotron Radiation Innovation Smart　Associate Professor

  • 2019/11 - 2025/05
    Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Associate Professor

  • 2009/10 - 2019/10
    The Institute for Solid State Physics, The University of Tokyo　Synchrotron Radiation Laboratory, Laser and Synchrotron Research Center　Research Associate

  • 2008/06 - 2009/10
    FOM Institute for Atomic and Molecular Physics (AMOLF)　Prof. Mischa Bonn group　JSPS Postdoctoral Fellow for Research Abroad

  • 2008/04 - 2008/05
    FOM Institute for Atomic and Molecular Physics (AMOLF)　Prof. Mischa Bonn group　Visiting Researcher

  • 2005/04 - 2008/03
    Stanford Synchrotron Radiation Lightsource　Prof. Anders Nilsson group　Postdoctoral Researcher

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Education 2

  • The University of Tokyo　School of Science　Department of Chemistry

    2000/04 - 2005/03

  • International Christian University　College of Liberal Arts　Division of Natural Sciences, Chemistry Major

    1996/04 - 2000/03

Committee Memberships 11

  • The Japanese Society for Synchrotron Radiation Research (JSSRR)　Member of the Program Committee, the 39th JSSRR Annual Meeting

    2025/06 - Present

  • The Japanese Society for Synchrotron Radiation Research (JSSRR)　Member of the Local Organizing Committee, the 39th JSSRR Annual Meeting

    2024/12 - Present

  • The Japan Society of Vacuum and Surface Science, Synchrotron Radiation Surface Science Division　Board Member

    2021/04 - Present

  • The Japan Society of Vacuum and Surface Science, Tohoku/Hokkaido Branch　Board Member

    2021/04 - Present

  • VUV-SX Users' Organization　Board Member

    2020/04 - Present

  • The Japanese Society for Synchrotron Radiation Research (JSSRR)　Member of the Program Committee, the 38th JSSRR Annual Meeting

    2024/06 - 2025/01

  • The Japan Society of Vacuum and Surface Science, Kansai Branch　Board Member

    2018/04 - 2020/03

  • The Japanese Society for Synchrotron Radiation Research (JSSRR)　Member of the Program Committee, the 31st JSSRR Annual Meeting

    2017/06 - 2018/01

  • The Japanese Society for Synchrotron Radiation Research (JSSRR)　Member of the Program Committee, the 30th JSSRR Annual Meeting

    2016/06 - 2017/01

  • The Japanese Society for Synchrotron Radiation Research (JSSRR)　Member of the Local Organizing Committee, the 29th JSSRR Annual Meeting

    2015/03 - 2016/01

  • The Japanese Society for Synchrotron Radiation Research (JSSRR)　Member of the Activities Committee

    2013/10 - 2015/09

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Professional Memberships 7

  • The Japan Society of Vacuum and Surface Science

  • THE PHYSICAL SOCIETY OF JAPAN

  • American Vacuum Society

  • American Physical Society

  • American Chemical Society

  • 日本放射光学会

  • 日本化学会

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Research Interests 17

  • オペランド

  • 触媒

  • プラズモニック化学反応

  • CO2

  • 光電子分光

  • 軟X線

  • 放射光

  • 表面物性

  • 電子励起反応

  • レーザー分光法

  • X線分光法

  • 振動分光法

  • 酸化物表面

  • 金属表面

  • 氷

  • 水

  • 表面化学

Research Areas 5

  • Energy / Quantum beam science /

  • Nanotechnology/Materials / Basic physical chemistry /

  • Natural sciences / Semiconductors, optical and atomic physics /

  • Nanotechnology/Materials / Nanostructure physics /

  • Nanotechnology/Materials / Nanostructure chemistry /

Awards 5

  1. Journal Award

    2021　The Japan Society of Vacuum and Surface Science (JVSS)　"Surface Chemistry of Carbon Dioxide on Copper Model Catalysts Studied by Ambient-Pressure X-ray Photoelectron Spectroscopy"

  2. Journal Award

    2020　The Japan Society of Vacuum and Surface Science (JVSS)　"A Surface Science Approach to Unveiling the TiO2 Photocatalytic Mechanism: Correlation between Photocatalytic Activity and Carrier Lifetime"

  3. 日本学術振興会海外特別研究員

    2008

  4. 第５回表面エレクトロニクス研究会 Student prize

    2004

  5. 東京大学大学院学生学術研究奨励金

    2004

Papers 98

  1. Soft X-ray photoelectron spectroscopy under real ambient pressure conditions International-journal Peer-reviewed

    Tetsuya Wada, Masafumi Horio, Yifu Liu, Yu Murano, Haruto Sakurai, Toshihide Sumi, Masashige Miyamoto, Susumu Yamamoto, Iwao Matsuda

    Applied Physics Express　18　(3)　036504-036504　2025/03/26

    Publisher: IOP Publishing

    DOI： 10.35848/1882-0786/adbda8 　

    ISSN： 1882-0778

    eISSN： 1882-0786

    More details Close

    Abstract We have developed a measurement system for soft X-ray ambient pressure photoelectron spectroscopy at BL08U of NanoTerasu. An excitation light of 800 eV was introduced by a vacuum tube terminated with a SiN window. Photoelectrons were detected through a ϕ24 μm aperture at the electron lens entrance of a differentially pumped analyzer. The Au 4f core-level spectra of a Au film were measured up to atmospheric pressure (1 bar) with He, to 1 bar with H2, and to 0.4 bar with N2. The system extends applications of operando experiments for the real functional materials.

  2. High-throughput evaluation of half-metallicity of Co 2 MnSi Heusler alloys using composition-spread films and spin-integrated hard X-ray photoelectron spectroscopy Peer-reviewed

    Ryo Toyama, Shunsuke Tsuda, Yuma Iwasaki, Thang Dinh Phan, Susumu Yamamoto, Hiroyuki Yamane, Koichiro Yaji, Yuya Sakuraba

    Science and Technology of Advanced Materials　26　(1)　2439781　2025/01/07

    Publisher: Informa UK Limited

    DOI： 10.1080/14686996.2024.2439781 　

    ISSN： 1468-6996

    eISSN： 1878-5514

  3. Hydrogen‐induced Sulfur Vacancies on the MoS2 Basal Plane Studied by Ambient Pressure XPS and DFT Calculations Peer-reviewed

    Fumihiko Ozaki, Shunsuke Tanaka, YoungHyun Choi, Wataru Osada, Kozo Mukai, Mitsuaki Kawamura, Masahiro Fukuda, Masafumi Horio, Takanori Koitaya, Susumu Yamamoto, Iwao Matsuda, Taisuke Ozaki, Jun Yoshinobu

    ChemPhysChem　e202300477　2023/09/25

    DOI： 10.1002/cphc.202300477 　

  4. In Situ Electrical Detection of Methane Oxidation on Atomically Thin IrO2 Nanosheet Films Down to Room Temperature Peer-reviewed

    Yoshiaki Ishihara, Takanori Koitaya, Yuto Hamahiga, Wataru Sugimoto, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu, Ryo Nouchi

    Advanced Materials Interfaces　10　(18)　2300258　2023/06

    Publisher: Wiley

    DOI： 10.1002/admi.202300258 　

    ISSN： 2196-7350

    eISSN： 2196-7350

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    Abstract Activation of the CH bond is the first step in converting methane into valuable chemicals. Herein, the successful induction and electrical detection of a methane oxidation reaction are reported at room temperature using IrO2 nanosheets, a 2D form of IrO2. A clear decrease in electrical resistance upon exposure to methane is observed by using atomically thin IrO2 nanosheet films. The resistance decrease disappears upon simultaneous exposure to oxygen, suggesting that methane is oxidized by consuming the lattice oxygen of the IrO2 nanosheets and that the oxygen vacancies generated are recovered by oxygen in the atmosphere. The resistance decrease is observed even at 300 K, indicating the high methane oxidation ability of the IrO2 nanosheets. These results are confirmed by a shift of the Ir 4f peaks in ambient pressure X‐ray photoelectron spectra. Furthermore, deposition of amorphous carbon, that is, methane oxidation products, on IrO2 nanosheets is also confirmed by Raman scattering spectroscopy after prolonged methane exposure at high temperatures in the absence of oxygen. This study demonstrates the ability of IrO2 nanosheets to oxidize methane at least down to 300 K and is an important example of the usefulness and simplicity of chemical reaction monitoring using electrical resistance changes.

  5. Surface Exchange Reaction of Mixed Conductive La0.65Ca0.35FeO3−δ during Oxygen Evolution and Incorporation as Traced by Operando X-ray Photoelectron Spectroscopy Peer-reviewed

    Isao Kagomiya, Tomohiro Hirano, Yutaro Yagi, Ken-ichi Kakimoto, Susumu Yamamoto, Iwao Matsuda

    ACS Applied Materials & Interfaces　14　(42)　48194-48199　2022/10/26

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsami.2c10700 　

    ISSN： 1944-8244

    eISSN： 1944-8252

  6. Resolving decay-time dependent photoluminescence induced by phonon-dressed excitons in ZnO Peer-reviewed

    Ryu Yukawa, Susumu Yamamoto, Ren Arita, Yuki Minami, Kohei Yamanoi, Kenichi Ozawa, Kazuyuki Sakamoto, Toshihiko Shimizu, Nobuhiko Sarukura, Iwao Matsuda

    Physical Review Materials　6　(10)　2022/10/21

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevmaterials.6.104607 　

    eISSN： 2475-9953

  7. Functionalization of the MoS2 basal plane for activation of molecular hydrogen by Pd deposition Peer-reviewed

    Fumihiko Ozaki, Shunsuke Tanaka, Wataru Osada, Kozo Mukai, Masafumi Horio, Takanori Koitaya, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu

    Applied Surface Science　593　153313-153313　2022/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.apsusc.2022.153313 　

    ISSN： 0169-4332

  8. Hydrogen absorption and diffusion behaviors in cube-shaped palladium nanoparticles revealed by ambient-pressure X-ray photoelectron spectroscopy Peer-reviewed

    Jiayi Tang, Okkyun Seo, David S. Rivera Rocabado, Takanori Koitaya, Susumu Yamamoto, Yusuke Nanba, Chulho Song, Jaemyung Kim, Akitaka Yoshigoe, Michihisa Koyama, Shun Dekura, Hirokazu Kobayashi, Hiroshi Kitagawa, Osami Sakata, Iwao Matsuda, Jun Yoshinobu

    Applied Surface Science　587　152797-152797　2022/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.apsusc.2022.152797 　

    ISSN： 0169-4332

  9. Hole Dynamics in Photoexcited Hematite Studied with Femtosecond Oxygen K-edge X-ray Absorption Spectroscopy International-coauthorship Peer-reviewed

    Yohei Uemura, Ahmed S. M. Ismail, Sang Han Park, Soonnam Kwon, Minseok Kim, Hebatalla Elnaggar, Federica Frati, Hiroki Wadati, Yasuyuki Hirata, Yujun Zhang, Kohei Yamagami, Susumu Yamamoto, Iwao Matsuda, Ufuk Halisdemir, Gertjan Koster, Christopher Milne, Markus Ammann, Bert M. Weckhuysen, Frank M. F. de Groot

    The Journal of Physical Chemistry Letters　13　(19)　4207-4214　2022/05/19

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.jpclett.2c00295 　

    ISSN： 1948-7185

    eISSN： 1948-7185

  10. Fast and versatile polarization control of X-ray by segmented cross undulator at SPring-8 Invited Peer-reviewed

    Jun Miyawaki, Susumu Yamamoto, Yasuyuki Hirata, Masafumi Horio, Yoshihisa Harada, Iwao Matsuda

    AAPPS Bulletin　31　(1)　2021/12

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s43673-021-00026-z 　

    ISSN： 2309-4710

    eISSN： 2309-4710

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    <title>Abstract</title>An X-ray is the well-known probe to examine structure of materials, including our own bodies. The X-ray beam, especially at the wavelength of nanometers, has also become significant to directly investigate electronic states of a sample. Such an X-ray is called a soft X-ray and polarization dependence of the light-matter interaction further unveils the microscopic properties, such as orbitals or spins of electrons. Generation of high brilliant beams of the polarized X-ray has linked to development of our experimental science, and it has been made by radiation from relativistic electrons at the synchrotron radiation facilities over the world. Recently, we constructed a new polarization-controlled X-ray source, the segmented cross undulator, at SPring-8, the largest synchrotron radiation facility in the world. The operation is based on interference of X-ray beams, which is sharply contrast to the conventional method of regulating electron trajectory by the mechanical control of magnets. The paradigm shift opened the measurement innovations and allowed us to design new experimental approaches to capture signals that have been hidden in materials. The present review describes the novel X-ray source with the principle of operation and the technical details of optimization. Examples of the frontier spectroscopies that use unique optical properties of the source are introduced, followed by the future prospects for next generation synchrotron radiation facilities.

  11. Comparative Study of H2O and O2 Adsorption on the GaN Surface Peer-reviewed

    Masahiro Sato, Yuki Imazeki, Takahito Takeda, Masaki Kobayashi, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu, Yoshiaki Nakano, Masakazu Sugiyama

    The Journal of Physical Chemistry C　125　(46)　25807-25815　2021/11/25

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.jpcc.1c07110 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  12. Influence of Stacking Order of Phthalocyanine and Fullerene Layers on the Photoexcited Carrier Dynamics in Model Organic Solar Cell Peer-reviewed

    Kenichi Ozawa, Susumu Yamamoto, Tetsuya Miyazawa, Keita Yano, Koji Okudaira, Kazuhiko Mase, Iwao Matsuda

    The Journal of Physical Chemistry C　125　(25)　13963-13970　2021/07/01

    DOI： 10.1021/acs.jpcc.1c03584 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  13. Band Bending of n-GaN under Ambient H2O Vapor Studied by X-ray Photoelectron Spectroscopy Peer-reviewed

    Yuki Imazeki, Masahiro Sato, Takahito Takeda, Masaki Kobayashi, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu, Masakazu Sugiyama, Yoshiaki Nakano

    The Journal of Physical Chemistry C　125　(17)　9011-9019　2021/05/06

    DOI： 10.1021/acs.jpcc.0c11174 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  14. Femtosecond Charge Density Modulations in Photoexcited CuWO4 International-coauthorship Peer-reviewed

    Yohei Uemura, Ahmed S. M. Ismail, Sang Han Park, Soonnam Kwon, Minseok Kim, Yasuhiro Niwa, Hiroki Wadati, Hebatalla Elnaggar, Federica Frati, Ties Haarman, Niko Höppel, Nils Huse, Yasuyuki Hirata, Yujun Zhang, Kohei Yamagami, Susumu Yamamoto, Iwao Matsuda, Tetsuo Katayama, Tadashi Togashi, Shigeki Owada, Makina Yabashi, Uufuk Halisdemir, Gertjan Koster, Toshihiko Yokoyama, Bert M. Weckhuysen, Frank M. F. de Groot

    The Journal of Physical Chemistry C　125　(13)　7329-7336　2021/03/26

    DOI： 10.1021/acs.jpcc.0c10525 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  15. Valence Fluctuations in Yb(Al,Fe)B4 Studied by Nanosecond-time-resolved Photoemission Spectroscopy Using Synchrotron Radiation Peer-reviewed

    M. Okawa, K. Akikubo, S. Yamamoto, I. Matsuda, T. Saitoh

    e-Journal of Surface Science and Nanotechnology　19　(0)　20-23　2021/03/18

    Publisher: Surface Science Society Japan

    DOI： 10.1380/ejssnt.2021.20 　

    eISSN： 1348-0391

  16. Time-resolved X-ray photoelectron diffraction using an angle-resolved time-of-flight electron analyzer Peer-reviewed

    Artoni Kevin R. Ang, Yuichiro Fukatsu, Koji Kimura, Yuta Yamamoto, Takahiro Yonezawa, Hirokazu Nitta, Antoine Fleurence, Susumu Yamamoto, Iwao Matsuda, Yukiko Yamada-Takamura, Kouichi Hayashi

    Japanese Journal of Applied Physics　59　(10)　100902-100902　2020/10/01

    DOI： 10.35848/1347-4065/abb57e 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  17. Atomistic-Level Description of GaN/Water Interface by a Combined Spectroscopic and First-Principles Computational Approach Peer-reviewed

    Masahiro Sato, Yuki Imazeki, Takahito Takeda, Masaki Kobayashi, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu, Yoshiaki Nakano, Masakazu Sugiyama

    The Journal of Physical Chemistry C　124　(23)　12466-12475　2020/06/11

    DOI： 10.1021/acs.jpcc.0c02192 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  18. Element-selectively tracking ultrafast demagnetization process in Co/Pt multilayer thin films by the resonant magneto-optical Kerr effect Peer-reviewed

    Kohei Yamamoto, Souliman El Moussaoui, Yasuyuki Hirata, Susumu Yamamoto, Yuya Kubota, Shigeki Owada, Makina Yabashi, Takeshi Seki, Koki Takanashi, Iwao Matsuda, Hiroki Wadati

    Applied Physics Letters　116　(17)　172406-172406　2020/04/27

    DOI： 10.1063/5.0005393 　

    ISSN： 0003-6951

    eISSN： 1077-3118

  19. Erratum: A surface science approach to understand-ing TiO<inf>2</inf>photocatalyst: Correlation between carrier lifetime and photocatalytic activity (e-Journal of Surface Science and Nanotechnology (2019) 17 (130-147) DOI: 10.1380/ejssnt.2019.130)

    Kenichi Ozawa, Susumu Yamamoto, Kazuhiko Mase, Iwao Matsuda

    e-Journal of Surface Science and Nanotechnology　18　100　2020/03/19

    DOI： 10.1380/EJSSNT.2020.100 　

    eISSN： 1348-0391

  20. A computational examination of the electric-field-induced proton transfer along the interface hydrogen bond between proton donating and accepting self-assembled monolayers Peer-reviewed

    Yusuke Kanematsu, Hiroyuki S. Kato, Shinya Yoshimoto, Akira Ueda, Susumu Yamamoto, Hatsumi Mori, Jun Yoshinobu, Iwao Matsuda, Masanori Tachikawa

    Chemical Physics Letters　741　137091-137091　2020/02

    Publisher: Elsevier BV

    DOI： 10.1016/j.cplett.2020.137091 　

    ISSN： 0009-2614

  21. Direct observation of the electronic states of photoexcited hematite with ultrafast 2p3d X-ray absorption spectroscopy and resonant inelastic X-ray scattering International-coauthorship Peer-reviewed

    Ahmed S. M. Ismail, Yohei Uemura, Sang Han Park, Soonnam Kwon, Minseok Kim, Hebatalla Elnaggar, Federica Frati, Yasuhiro Niwa, Hiroki Wadati, Yasuyuki Hirata, Yujun Zhang, Kohei Yamagami, Susumu Yamamoto, Iwao Matsuda, Ufuk Halisdemir, Gertjan Koster, Bert M. Weckhuysen, Frank M. F. de Groot

    Physical Chemistry Chemical Physics　22　(5)　2685-2692　2020

    DOI： 10.1039/c9cp03374b 　

    ISSN： 1463-9076

    eISSN： 1463-9084

  22. Surface Chemistry of Carbon Dioxide on Copper Model Catalysts Studied by Ambient-Pressure X-ray Photoelectron Spectroscopy Peer-reviewed

    Takanori Koitaya, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu

    e-Journal of Surface Science and Nanotechnology　17　(0)　169-178　2019/11/02

    DOI： 10.1380/ejssnt.2019.169 　

    ISSN： 1348-0391

    eISSN： 1348-0391

  23. Reversible low-temperature redox activity and selective oxidation catalysis derived from the concerted activation of multiple metal species on Cr and Rh-incorporated ceria catalysts Peer-reviewed

    Ikemoto Satoru, Huang Xiubing, Muratsugu Satoshi, Nagase Shoko, Koitaya Takanori, Matsui Hirosuke, Yokota Gen-ichi, Sudoh Takatoshi, Hashimoto Ayako, Tan Yuanyuan, Yamamoto Susumu, Tang Jiayi, Matsuda Iwao, Yoshinobu Jun, Yokoyama Toshihiko, Kusaka Shinpei, Matsuda Ryotaro, Tada Mizuki

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS　21　(37)　20868-20877　2019/10/07

    DOI： 10.1039/c9cp04625a 　

    ISSN： 1463-9076

    eISSN： 1463-9084

  24. Photoinduced valence dynamics in EuNi2(Si0.21Ge0.79)2 studied via time-resolved x-ray absorption spectroscopy Peer-reviewed

    Y. Yokoyama, K. Kawakami, Y. Hirata, K. Takubo, K. Yamamoto, K. Abe, A. Mitsuda, H. Wada, T. Uozumi, S. Yamamoto, I. Matsuda, S. Kimura, K. Mimura, H. Wadati

    Physical Review B　100　(11)　2019/09/12

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevb.100.115123 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  25. A Surface Science Approach to Unveiling the TiO2 Photocatalytic Mechanism: Correlation between Photocatalytic Activity and Carrier Lifetime Peer-reviewed

    Kenichi Ozawa, Susumu Yamamoto, Kazuhiko Mase, Iwao Matsuda

    e-Journal of Surface Science and Nanotechnology　17　(0)　130-147　2019/09/07

    DOI： 10.1380/ejssnt.2019.130 　

    ISSN： 1348-0391

    eISSN： 1348-0391

  26. Mass transport in the PdCu phase structures during hydrogen adsorption and absorption studied by XPS under hydrogen atmosphere Peer-reviewed

    Jiayi Tang, Susumu Yamamoto, Takanori Koitaya, Akitaka Yoshigoe, Takuma Tokunaga, Kozo Mukai, Iwao Matsuda, Jun Yoshinobu

    Applied Surface Science　480　419-426　2019/06

    Publisher: Elsevier {BV}

    DOI： 10.1016/j.apsusc.2019.02.180 　

  27. CO2 Activation and Reaction on Zn-Deposited Cu Surfaces Studied by Ambient-Pressure X-ray Photoelectron Spectroscopy Peer-reviewed

    Takanori Koitaya, Susumu Yamamoto, Yuichiro Shiozawa, Yuki Yoshikura, Masahiro Hasegawa, Jiayi Tang, Kaori Takeuchi, Kozo Mukai, Shinya Yoshimoto, Iwao Matsuda, Jun Yoshinobu

    ACS Catalysis　9　4539-4550　2019/05/03

    Publisher: American Chemical Society ({ACS})

    DOI： 10.1021/acscatal.9b00041 　

  28. Direct Evidence of Interfacial Hydrogen Bonding in Proton-Electron Concerted 2D Organic Bilayer on Au Substrate Peer-reviewed

    Susumu Yamamoto, Hiroyuki S. Kato, Akira Ueda, Shinya Yoshimoto, Yasuyuki Hirata, Jun Miyawaki, Kohei Yamamoto, Yoshihisa Harada, Hiroki Wadati, Hatsumi Mori, Jun Yoshinobu, Iwao Matsuda

    e-Journal of Surface Science and Nanotechnology　17　(0)　49-55　2019/04/27

    DOI： 10.1380/ejssnt.2019.49 　

    ISSN： 1348-0391

    eISSN： 1348-0391

  29. Segmented Undulator for Extensive Polarization Controls in ≤1 nm-rad Emittance Rings Peer-reviewed

    Susumu Yamamoto

    e-Journal of Surface Science and Nanotechnology　17　41-48　2019/04/27

    DOI： 10.1380/ejssnt.2019.41 　

    ISSN： 1348-0391

  30. Semimetallicity of free-standing hydrogenated monolayer boron from MgB2 International-coauthorship Peer-reviewed

    I. Tateishi, N. T. Cuong, C. A. S. Moura, M. Cameau, R. Ishibiki, A. Fujino, S. Okada, A. Yamamoto, M. Araki, S. Ito, S. Yamamoto, M. Niibe, T. Tokushima, D. E. Weibel, T. Kondo, M. Ogata, I. Matsuda

    Physical Review Materials　3　(2)　2019/02/22

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevmaterials.3.024004 　

    ISSN： 2475-9953

    eISSN： 2475-9953

  31. Enhanced Photoresponsivity of Fullerene in the Presence of Phthalocyanine: A Time-Resolved X-ray Photoelectron Spectroscopy Study of Phthalocyanine/C60/TiO2(110) Peer-reviewed

    Kenichi Ozawa, Susumu Yamamoto, Marie D’angelo, Yuto Natsui, Naoya Terashima, Kazuhiko Mase, Iwao Matsuda

    The Journal of Physical Chemistry C　123　4388-4395　2019/02/21

    Publisher: American Chemical Society ({ACS})

    DOI： 10.1021/acs.jpcc.9b00186 　

  32. Reversible low-temperature redox activity and selective oxidation catalysis derived from the concerted activation of multiple metal species on Cr and Rh-incorporated ceria catalysts Peer-reviewed

    Susumu Yamamoto

    Physical Chemistry Chemical Physics　2019

    DOI： 10.1039/c9cp04625a 　

    ISSN： 1463-9084

    More details Close

    <p>The low-temperature redox activity of Cr and Rh-incorporated ceria catalyst was derived from the concerted activation of all three metal species.</p>

  33. Hydrogen adsorption and absorption on a Pd-Ag alloy surface studied using in-situ X-ray photoelectron spectroscopy under ultrahigh vacuum and ambient pressure Peer-reviewed

    Tang, Jiayi, Yamamoto, Susumu, Koitaya, Takanori, Yoshikura, Yuki, Mukai, Kozo, Yoshimoto, Shinya, Matsuda, Iwao, Yoshinobu, Jun

    Applied Surface Science　463　1161-1167　2019

    DOI： 10.1016/j.apsusc.2018.07.078 　

  34. Resonant magneto-optical Kerr effect measurement system with polarization analysis using a high harmonic generation laser Peer-reviewed

    Yamamoto, Sh., Oumbarek, D., Fujisawa, M., Someya, T., Takahashi, Y., Yamamoto, T., Ishii, N., Yaji, K., Yamamoto, S., Kanai, T., Okazaki, K., Kotsugi, M., Itatani, J., Shin, S., Matsuda, I.

    Journal of Electron Spectroscopy and Related Phenomena　222　68-73　2018

    DOI： 10.1016/j.elspec.2017.09.001 　

  35. Element Selectivity in Second-Harmonic Generation of GaFeO3 by a Soft-X-Ray Free-Electron Laser Peer-reviewed

    Yamamoto, Sh., Omi, T., Akai, H., Kubota, Y., Takahashi, Y., Suzuki, Y., Hirata, Y., Yamamoto, K., Yukawa, R., Horiba, K., Yumoto, H., Koyama, T., Ohashi, H., Owada, S., Tono, K., Yabashi, M., Shigemasa, E., Yamamoto, S., Kotsugi, M., Wadati, H., Kumigashira, H., Arima, T., Shin, S., Matsuda, I.

    Physical Review Letters　120　(22)　2018

    DOI： 10.1103/PhysRevLett.120.223902 　

  36. Controlling the surface photovoltage on WSe2 by surface chemical modification International-coauthorship Peer-reviewed

    Liu, Ro-Ya, Ozawa, Kenichi, Terashima, Naoya, Natsui, Yuto, Feng, Baojie, Ito, Suguru, Chen, Wei-Chuan, Cheng, Cheng-Maw, Yamamoto, Susumu, Kato, Hiroo, Chiang, Tai-Chang, Matsuda, Iwao

    Applied Physics Letters　112　(21)　2018

    DOI： 10.1063/1.5026351 　

  37. Strong Hydrogen Bonds at the Interface between Proton-Donating and -Accepting Self-Assembled Monolayers on Au(111) Peer-reviewed

    Kato, Hiroyuki S., Yoshimoto, Shinya, Ueda, Akira, Yamamoto, Susumu, Kanematsu, Yusuke, Tachikawa, Masanori, Mori, Hatsumi, Yoshinobu, Jun, Matsuda, Iwao

    Langmuir　34　(5)　2189-2197　2018

    DOI： 10.1021/acs.langmuir.7b03451 　

  38. Correlation between Photocatalytic Activity and Carrier Lifetime: Acetic Acid on Single-Crystal Surfaces of Anatase and Rutile TiO2 Peer-reviewed

    Ozawa, Kenichi, Yamamoto, Susumu, Yukawa, Ryu, Liu, Ro-Ya, Terashima, Naoya, Natsui, Yuto, Kato, Hiroo, Mase, Kazuhiko, Matsuda, Iwao

    Journal of Physical Chemistry C　122　(17)　9562-9569　2018

    DOI： 10.1021/acs.jpcc.8b02259 　

  39. Interfacial carrier dynamics of graphene on SiC, traced by the full-range time-resolved core-level photoemission spectroscopy Peer-reviewed

    Someya, T., Fukidome, H., Endo, N., Takahashi, K., Yamamoto, S., Matsuda, I

    Applied Physics Letters　113　(5)　2018

    DOI： 10.1063/1.5043223 　

  40. Femtosecond resonant magneto-optical Kerr effect measurement on an ultrathin magnetic film in a soft X-ray free electron laser Peer-reviewed

    Yamamoto, Shingo, Kubota, Yuya, Yamamoto, Kohei, Takahashi, Yoshinobu, Maruyama, Kohei, Suzuki, Yuta, Hobara, Rei, Fujisawa, Masami, Oshima, Daiki, Owada, Shigeki, Togashi, Tadashi, Tono, Kensuke, Yabashi, Makina, Hirata, Yasuyuki, Yamamoto, Susumu, Kotsugi, Masato, Wadati, Hiroki, Kato, Takeshi, Iwata, Satoshi, Shin, Shik, Matsuda, Iwao

    Japanese Journal of Applied Physics　57　(9)　2018

    DOI： 10.7567/JJAP.57.09TD02 　

  41. Enhancement of CO2 adsorption on oxygen-functionalized epitaxial graphene surface under near-ambient conditions Peer-reviewed

    Yamamoto, Susumu, Takeuchi, Kaori, Hamamoto, Yuji, Liu, Ro-Ya, Shiozawa, Yuichiro, Koitaya, Takanori, Someya, Takashi, Tashima, Keiichiro, Fukidome, Hirokazu, Mukai, Kozo, Yoshimoto, Shinya, Suemitsu, Maki, Morikawa, Yoshitada, Yoshinobu, Jun, Matsuda, Iwao

    Physical Chemistry Chemical Physics　20　(29)　19532-19538　2018

    DOI： 10.1039/c8cp03251c 　

  42. Interface electronic structure at the topological insulator-ferrimagnetic insulator junction International-coauthorship Peer-reviewed

    Kubota, Y., Murata, K., Miyawaki, J., Ozawa, K., Onbasli, M. C., Shirasawa, T., Feng, B., Yamamoto, Sh, Liu, R-Y, Yamamoto, S., Mahatha, S. K., Sheverdyaeva, P., Moras, P., Ross, C. A., Suga, S., Harada, Y., Wang, K. L., Matsuda, I.

    Journal of Physics-Condensed Matter　29　(5)　2017

    DOI： 10.1088/1361-648X/29/5/055002 　

    ISSN： 0953-8984

    eISSN： 1361-648X

  43. Determination of the element-specific complex permittivity using a soft x-ray phase modulator Peer-reviewed

    Kubota, Y., Hirata, Y., Miyawaki, J., Yamamoto, S., Akai, H., Hobara, R., Yamamoto, Sh., Yamamoto, K., Someya, T., Takubo, K., Yokoyama, Y., Araki, M., Taguchi, M., Harada, Y., Wadati, H., Tsunoda, M., Kinjo, R., Kagamihata, A., Seike, T., Takeuchi, M., Tanaka, T., Shin, S., Matsuda, I.

    Physical Review B　96　(21)　2017

    DOI： 10.1103/PhysRevB.96.214417 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  44. Capturing ultrafast magnetic dynamics by time-resolved soft x-ray magnetic circular dichroism Peer-reviewed

    Takubo, Kou, Yamamoto, Kohei, Hirata, Yasuyuki, Yokoyama, Yuichi, Kubota, Yuya, Yamamoto, Shingo, Yamamoto, Susumu, Matsuda, Iwao, Shin, Shik, Seki, Takeshi, Takanashi, Koki, Wadati, Hiroki

    Applied Physics Letters　110　(16)　2017

    DOI： 10.1063/1.4981769 　

    ISSN： 0003-6951

    eISSN： 1077-3118

  45. Adsorption of CO2 on Graphene: A Combined TPD, XPS, and vdW-DF Study Peer-reviewed

    Takeuchi, Kaori, Yamamoto, Susumu, Hamamoto, Yuji, Shiozawa, Yuichiro, Tashima, Keiichiro, Fukidome, Hirokazu, Koitaya, Takanori, Mukai, Kozo, Yoshimoto, Shinya, Suemitsu, Maki, Morikawa, Yoshitada, Yoshinobu, Jun, Matsuda, Iwao

    Journal of Physical Chemistry C　121　(5)　2807-2814　2017

    DOI： 10.1021/acs.jpcc.6b11373 　

    ISSN： 1932-7447

  46. Suppression of supercollision carrier cooling in high mobility graphene on SiC(000(1)over-bar) Peer-reviewed

    Someya, Takashi, Fukidome, Hirokazu, Watanabe, Hiroshi, Yamamoto, Takashi, Okada, Masaru, Suzuki, Hakuto, Ogawa, Yu, Iimori, Takushi, Ishii, Nobuhisa, Kanai, Teruto, Tashima, Keiichiro, Feng, Baojie, Yamamoto, Susumu, Itatani, Jiro, Komori, Fumio, Okazaki, Kozo, Shin, Shik, Matsuda, Iwao

    Physical Review B　95　(16)　2017

    DOI： 10.1103/PhysRevB.95.165303 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  47. Polarization dependence of resonant magneto-optical Kerr effect measured by two types of figure-8 undulators Peer-reviewed

    Kubota, Y., Yamamoto, Sh., Someya, T., Hirata, Y., Takubo, K., Araki, M., Fujisawa, M., Yamamoto, K., Yokoyama, Y., Taguchi, M., Yamamoto, S., Tsunoda, M., Wadati, H., Shin, S., Matsuda, I.

    Journal of Electron Spectroscopy and Related Phenomena　220　17-20　2017

    DOI： 10.1016/j.elspec.2016.11.008 　

    ISSN： 0368-2048

    eISSN： 1873-2526

  48. L-edge resonant magneto-optical Kerr effect of a buried Fe nanofilm Peer-reviewed

    Kubota, Y., Taguchi, M., Akai, H., Yamamoto, Sh., Someya, T., Hirata, Y., Takubo, K., Araki, M., Fujisawa, M., Yamamoto, K., Yokoyama, Y., Yamamoto, S., Tsunoda, M., Wadati, H., Shin, S., Matsuda, I.

    Physical Review B　96　(13)　2017

    DOI： 10.1103/PhysRevB.96.134432 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  49. Time-resolved soft X-ray core-level photoemission spectroscopy at 880 degrees C using the pulsed laser and synchrotron radiation and the pulse heating current Peer-reviewed

    Abukawa, T., Yamamoto, S., Yukawa, R., Kanzaki, S., Mukojima, K., Matsuda, I.

    Surface Science　656　43-47　2017

    DOI： 10.1016/j.susc.2016.09.006 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  50. Investigation of Photo-carrier Generation Processes of Organic Solar Cells Using Time Resolved X-ray Photoelectron Spectroscopy Peer-reviewed

    SAKURAI, TAKEAKI, Ozawa, Kenichi, Yukawa, Ryu, K.Akikubo, K.Takeuchi, S.Yamamoto, Matsuda, Iwao

    Extended Abstracts of the 2016 International Conference on Solid State Devices and Materials (SSDM)　277-278　2016/09

  51. Tailoring Photovoltage Response at SrRuO3/SrTiO3 Heterostructures Peer-reviewed

    Yukawa, Ryu, Yamamoto, Susumu, Akikubo, Kazuma, Takeuchi, Kaori, Ozawa, Kenichi, Kumigashira, Hiroshi, Matsuda, Iwao

    Advanced Materials Interfaces　3　(22)　1600527-n/a　2016

    DOI： 10.1002/admi.201600527 　

    ISSN： 2196-7350

  52. Phonon-dressed two-dimensional carriers on the ZnO surface Peer-reviewed

    Yukawa, R., Ozawa, K., Yamamoto, S., Iwasawa, H., Shimada, K., Schwier, E. F., Yoshimatsu, K., Kumigashira, H., Namatame, H., Taniguchi, M., Matsuda, I.

    Physical Review B　94　(16)　2016

    DOI： 10.1103/PhysRevB.94.165313 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  53. What Determines the Lifetime of Photoexcited Carriers on TiO2 Surfaces? Peer-reviewed

    Ozawa, Kenichi, Yamamoto, Susumu, Yukawa, Ryu, Liu, Roya, Emori, Masato, Inoue, Koki, Higuchi, Taku, Sakama, Hiroshi, Mase, Kazuhiko, Matsuda, Iwao

    Journal of Physical Chemistry C　120　(51)　29283-29289　2016

    DOI： 10.1021/acs.jpcc.6b10136 　

    ISSN： 1932-7447

  54. Real-Time Observation of Reaction Processes of CO2 on Cu(997) by Ambient-Pressure X-ray Photoelectron Spectroscopy Peer-reviewed

    Koitaya, Takanori, Yamamoto, Susumu, Shiozawa, Yuichiro, Takeuchi, Kaori, Liu, Ro-Ya, Mukai, Kozo, Yoshimoto, Shinya, Akikubo, Kazuma, Matsuda, Iwao, Yoshinobu, Jun

    Topics in Catalysis　59　(5-7)　526-531　2016

    DOI： 10.1007/s11244-015-0535-1 　

    ISSN： 1022-5528

    eISSN： 1572-9028

  55. Capturing transiently charged states at the C-60/TiO2(110) interface by time-resolved soft X-ray photoelectron spectroscopy Peer-reviewed

    Ozawa, Kenichi, Yamamoto, Susumu, Yukawa, Ryu, Akikubo, Kazuma, Emori, Masato, Sakama, Hiroshi, Matsuda, Iwao

    Organic Electronics　31　98-103　2016

    DOI： 10.1016/j.orgel.2016.01.020 　

    ISSN： 1566-1199

    eISSN： 1878-5530

  56. Anisotropic effective mass approximation model to calculate multiple subband structures at wide-gap semiconductor surfaces: Application to accumulation layers of SrTiO3 and ZnO Peer-reviewed

    R. Yukawa, K. Ozawa, S. Yamamoto, R. -Y. Liu, I. Matsuda

    SURFACE SCIENCE　641　224-230　2015/11

    DOI： 10.1016/j.susc.2015.07.007 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  57. Ultrafast spin-switching of a ferrimagnetic alloy at room temperature traced by resonant magneto-optical Kerr effect using a seeded free electron laser International-coauthorship Peer-reviewed

    Sh. Yamamoto, M. Taguchi, T. Someya, Y. Kubota, S. Ito, H. Wadati, M. Fujisawa, F. Capotondi, E. Pedersoli, M. Manfredda, L. Raimondi, M. Kiskinova, J. Fujii, P. Moras, T. Tsuyama, T. Nakamura, T. Kato, T. Higashide, S. Iwata, S. Yamamoto, S. Shin, I. Matsuda

    REVIEW OF SCIENTIFIC INSTRUMENTS　86　(8)　2015/08

    DOI： 10.1063/1.4927828 　

    ISSN： 0034-6748

    eISSN： 1089-7623

  58. Development of an electromagnetic phase shifter using a pair of cut-core coils for a cross undulator Peer-reviewed

    I. Matsuda, A. Kuroda, J. Miyawaki, Y. Kosegawa, S. Yamamoto, T. Seike, T. Bizen, Y. Harada, T. Tanaka, H. Kitamura

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　767　296-299　2014/12

    DOI： 10.1016/j.nima.2014.08.037 　

    ISSN： 0168-9002

    eISSN： 1872-9576

  59. Electron-hole recombination on ZnO(0001) single-crystal surface studied by time-resolved soft X-ray photoelectron spectroscopy Peer-reviewed

    R. Yukawa, S. Yamamoto, K. Ozawa, M. Emori, M. Ogawa, Sh Yamamoto, K. Fujikawa, R. Hobara, S. Kitagawa, H. Daimon, H. Sakama, I. Matsuda

    APPLIED PHYSICS LETTERS　105　(15)　2014/10

    DOI： 10.1063/1.4897934 　

    ISSN： 0003-6951

    eISSN： 1077-3118

  60. Non-linear kinetic model for oscillatory relaxation of the photovoltage effect on a Si(111)7 x 7 surface Peer-reviewed

    M. Ogawa, R. -Y. Liu, C. -H. Lin, S. Yamamoto, R. Yukawa, R. Hobara, S. -J. Tang, I. Matsuda

    SURFACE SCIENCE　624　70-75　2014/06

    DOI： 10.1016/j.susc.2014.01.014 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  61. Electron-Hole Recombination Time at TiO2 Single-Crystal Surfaces: Influence of Surface Band Bending Peer-reviewed

    Kenichi Ozawa, Masato Emori, Susumu Yamamoto, Ryu Yukawa, Shingo Yamamoto, Rei Hobara, Kazushi Fujikawa, Hiroshi Sakama, Iwao Matsuda

    JOURNAL OF PHYSICAL CHEMISTRY LETTERS　5　(11)　1953-1957　2014/06

    DOI： 10.1021/jz500770c 　

    ISSN： 1948-7185

  62. Observing hot carrier distribution in an n-type epitaxial graphene on a SiC substrate Peer-reviewed

    T. Someya, H. Fukidome, Y. Ishida, R. Yoshida, T. Iimori, R. Yukawa, K. Akikubo, Sh Yamamoto, S. Yamamoto, T. Yamamoto, T. Kanai, K. Funakubo, M. Suemitsu, J. Itatani, F. Komori, S. Shin, I. Matsuda

    APPLIED PHYSICS LETTERS　104　(16)　2014/04

    DOI： 10.1063/1.4871381 　

    ISSN： 0003-6951

    eISSN： 1077-3118

  63. Erratum: Relaxations of the surface photovoltage effect on the atomically controlled semiconductor surfaces studied by time-resolved photoemission spectroscopy (Physical Review B - Condensed Matter and Materials Physics (2013) 88 (165313)) International-coauthorship

    M. Ogawa, S. Yamamoto, K. Fujikawa, R. Hobara, R. Yukawa, Sh Yamamoto, S. Kitagawa, D. Pierucci, M. G. Silly, C. H. Lin, R. Y. Liu, H. Daimon, F. Sirotti, S. J. Tang, I. Matsuda

    Physical Review B - Condensed Matter and Materials Physics　89　(11)　2014/03/24

    DOI： 10.1103/PhysRevB.89.119904 　

    ISSN： 1098-0121

    eISSN： 1550-235X

  64. Erratum: Oscillatory relaxation of surface photovoltage on a silicon surface (Physical Review B - Condensed Matter and Materials Physics (2013) 87 (235308)) International-coauthorship

    M. Ogawa, S. Yamamoto, R. Yukawa, R. Hobara, C. H. Lin, R. Y. Liu, S. J. Tang, I. Matsuda

    Physical Review B - Condensed Matter and Materials Physics　89　(11)　2014/03/24

    DOI： 10.1103/PhysRevB.89.119903 　

    ISSN： 1098-0121

    eISSN： 1550-235X

  65. New soft X-ray beamline BL07LSU at SPring-8 Peer-reviewed

    Susumu Yamamoto, Yasunori Senba, Takashi Tanaka, Haruhiko Ohashi, Toko Hirono, Hiroaki Kimura, Masami Fujisawa, Jun Miyawaki, Ayumi Harasawa, Takamitsu Seike, Sunao Takahashi, Nobuteru Nariyama, Tomohiro Matsushita, Masao Takeuchi, Toru Ohata, Yukito Furukawa, Kunikazu Takeshita, Shunji Goto, Yoshihisa Harada, Shik Shin, Hideo Kitamura, Akito Kakizaki, Masaharu Oshima, Iwao Matsuda

    JOURNAL OF SYNCHROTRON RADIATION　21　352-365　2014/03

    DOI： 10.1107/S1600577513034796 　

    ISSN： 0909-0495

    eISSN： 1600-5775

  66. Observation of a giant Kerr rotation in a ferromagnetic transition metal by M-edge resonant magneto-optic Kerr effect Peer-reviewed

    Sh. Yamamoto, M. Taguchi, M. Fujisawa, R. Hobara, S. Yamamoto, K. Yaji, T. Nakamura, K. Fujikawa, R. Yukawa, T. Togashi, M. Yabashi, M. Tsunoda, S. Shin, I. Matsuda

    PHYSICAL REVIEW B　89　(6)　2014/02

    DOI： 10.1103/PhysRevB.89.064423 　

    ISSN： 1098-0121

    eISSN： 1550-235X

  67. Relaxations of the surface photovoltage effect on the atomically controlled semiconductor surfaces studied by time-resolved photoemission spectroscopy International-coauthorship Peer-reviewed

    M. Ogawa, S. Yamamoto, K. Fujikawa, R. Hobara, R. Yukawa, Sh. Yamamoto, S. Kitagawa, D. Pierucci, M. G. Silly, C-H Lin, R-Y Liu, H. Daimon, F. Sirotti, S-J Tang, I. Matsuda

    PHYSICAL REVIEW B　88　(16)　2013/10

    DOI： 10.1103/PhysRevB.88.165313 　

    ISSN： 1098-0121

    eISSN： 1550-235X

  68. Oscillatory relaxation of surface photovoltage on a silicon surface International-coauthorship Peer-reviewed

    M. Ogawa, S. Yamamoto, R. Yukawa, R. Hobara, C. H. Lin, R. Y. Liu, S. J. Tang, I. Matsuda

    Physical Review B - Condensed Matter and Materials Physics　87　(23)　2013/06/17

    DOI： 10.1103/PhysRevB.87.235308 　

    ISSN： 1098-0121 1550-235X

    eISSN： 1550-235X

  69. Electronic structure of the hydrogen-adsorbed SrTiO3(001) surface studied by polarization-dependent photoemission spectroscopy International-coauthorship Peer-reviewed

    R. Yukawa, S. Yamamoto, K. Ozawa, M. D'Angelo, M. Ogawa, M. G. Silly, F. Sirotti, I. Matsuda

    PHYSICAL REVIEW B　87　(11)　2013/03

    DOI： 10.1103/PhysRevB.87.115314 　

    ISSN： 1098-0121

  70. Time-Resolved Photoelectron Spectroscopies Using Synchrotron Radiation: Past, Present, and Future Peer-reviewed

    Susumu Yamamoto, Iwao Matsuda

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN　82　(2)　2013/02

    DOI： 10.7566/JPSJ.82.021003 　

    ISSN： 0031-9015

  71. Highly Compressed Two-Dimensional Form of Water at Ambient Conditions International-coauthorship Peer-reviewed

    Sarp Kaya, Daniel Schlesinger, Susumu Yamamoto, John T. Newberg, Hendrik Bluhm, Hirohito Ogasawara, Tom Kendelewicz, Gordon E. Brown, Lars G. M. Pettersson, Anders Nilsson

    SCIENTIFIC REPORTS　3　2013/01

    DOI： 10.1038/srep01074 　

    ISSN： 2045-2322

  72. Elucidation of Rh-Induced In-Gap States of Rh:SrTiO3 Visible-Light-Driven Photocatalyst by Soft X-ray Spectroscopy and First-Principles Calculations Peer-reviewed

    Seiji Kawasaki, Kazuto Akagi, Kan Nakatsuji, Susumu Yamamoto, Iwao Matsuda, Yoshihisa Harada, Jun Yoshinobu, Fumio Komori, Ryota Takahashi, Mikk Lippmaa, Chikako Sakai, Hideharu Niwa, Masaharu Oshima, Katsuya Iwashina, Akihiko Kudo

    JOURNAL OF PHYSICAL CHEMISTRY C　116　(46)　24445-24448　2012/11

    DOI： 10.1021/jp3082529 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  73. Hydrogen-Induced Surface Metallization of SrTiO3(001) International-coauthorship Peer-reviewed

    M. D'Angelo, R. Yukawa, K. Ozawa, S. Yamamoto, T. Hirahara, S. Hasegawa, M. G. Silly, F. Sirotti, I. Matsuda

    PHYSICAL REVIEW LETTERS　108　(11)　2012/03

    DOI： 10.1103/PhysRevLett.108.116802 　

    ISSN： 0031-9007

  74. Development of soft x-ray time-resolved photoemission spectroscopy system with a two-dimensional angle-resolved time-of-flight analyzer at SPring-8 BL07LSU Peer-reviewed

    Manami Ogawa, Susumu Yamamoto, Yuka Kousa, Fumitaka Nakamura, Ryu Yukawa, Akiko Fukushima, Ayumi Harasawa, Hiroshi Kondoh, Yoshihito Tanaka, Akito Kakizaki, Iwao Matsuda

    REVIEW OF SCIENTIFIC INSTRUMENTS　83　(2)　2012/02

    DOI： 10.1063/1.3687428 　

    ISSN： 0034-6748

    eISSN： 1089-7623

  75. New soft X-ray beamline BL07LSU for long undulator of SPring-8: Design and status Peer-reviewed

    Y. Senba, S. Yamamoto, H. Ohashi, I. Matsuda, M. Fujisawa, A. Harasawa, T. Okuda, S. Takahashi, N. Nariyama, T. Matsushita, T. Ohata, Y. Furukawa, T. Tanaka, K. Takeshita, S. Goto, H. Kitamura, A. Kakizaki, M. Oshima

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　649　(1)　58-60　2011/09

    DOI： 10.1016/j.nima.2010.12.242 　

    ISSN： 0168-9002

    eISSN： 1872-9576

  76. Autocatalytic Surface Hydroxylation of MgO(100) Terrace Sites Observed under Ambient Conditions International-coauthorship Peer-reviewed

    John T. Newberg, David E. Starr, Susumu Yamamoto, Sarp Kaya, Tom Kendelewicz, Erin R. Mysak, Soeren Porsgaard, Miquel B. Salmeron, Gordon E. Brown, Anders Nisson, Hendrik Bluhm

    JOURNAL OF PHYSICAL CHEMISTRY C　115　(26)　12864-12872　2011/07

    DOI： 10.1021/jp200235v 　

    ISSN： 1932-7447

  77. Formation of hydroxyl and water layers on MgO films studied with ambient pressure XPS International-coauthorship Peer-reviewed

    John T. Newberg, David E. Starr, Susumu Yamamoto, Sarp Kaya, Tom Kendelewicz, Erin R. Mysak, Soeren Porsgaard, Miquel B. Salmeron, Gordon E. Brown, Anders Nilsson, Hendrik Bluhm

    SURFACE SCIENCE　605　(1-2)　89-94　2011/01

    DOI： 10.1016/j.susc.2010.10.004 　

    ISSN： 0039-6028

  78. Structural Inhomogeneity of Interfacial Water at Lipid Monolayers Revealed by Surface-Specific Vibrational Pump-Probe Spectroscopy International-coauthorship Peer-reviewed

    Mischa Bonn, Huib J. Bakker, Avishek Ghosh, Susumu Yamamoto, Maria Sovago, R. Kramer Campen

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　132　(42)　14971-14978　2010/10

    DOI： 10.1021/ja106194u 　

    ISSN： 0002-7863

  79. Water Adsorption on alpha-Fe2O3(0001) at near Ambient Conditions International-coauthorship Peer-reviewed

    Susumu Yamamoto, Tom Kendelewicz, John T. Newberg, Guido Ketteler, David E. Starr, Erin R. Mysak, Klas J. Andersson, Hirohito Ogasawara, Hendrik Bluhm, Miquel Salmeron, Gordon E. Brown, Anders Nilsson

    JOURNAL OF PHYSICAL CHEMISTRY C　114　(5)　2256-2266　2010/02

    DOI： 10.1021/jp909876t 　

    ISSN： 1932-7447

  80. Ultrafast inter- and intramolecular vibrational energy transfer between molecules at interfaces studied by time- and polarization-resolved SFG spectroscopy International-coauthorship Peer-reviewed

    Susumu Yamamoto, Avishek Ghosh, Han-Kwang Nienhuys, Mischa Bonn

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS　12　(40)　12909-12918　2010

    DOI： 10.1039/c0cp00538j 　

    ISSN： 1463-9076

  81. NO2 Adsorption on Ag(100) Supported MgO(100) Thin Films: Controlling the Adsorption State with Film Thickness International-coauthorship Peer-reviewed

    David E. Starr, Christoph Weis, Susumu Yamamoto, Anders Nilsson, Hendrik Bluhm

    JOURNAL OF PHYSICAL CHEMISTRY C　113　(17)　7355-7363　2009/04

    DOI： 10.1021/jp900410v 　

    ISSN： 1932-7447

  82. Water growth on metals and oxides: binding, dissociation and role of hydroxyl groups International-coauthorship Peer-reviewed

    M. Salmeron, H. Bluhm, N. Tatarkhanov, G. Ketteler, T. K. Shimizu, A. Mugarza, Xingyi Deng, T. Herranz, S. Yamamoto, A. Nilsson

    FARADAY DISCUSSIONS　141　221-229　2009

    DOI： 10.1039/b806516k 　

    ISSN： 1364-5498

  83. Direct observation of valence and conduction states near the SiO 2/Si(100) interface Peer-reviewed

    Yoshiyuki Yamashita, Susumu Yamamoto, Kozo Mukai, Jun Yoshinobu, Yoshihisa Harada, Takashi Tokushima, Shik Shin

    e-Journal of Surface Science and Nanotechnology　6　209-212　2008/09/25

    DOI： 10.1380/ejssnt.2008.209 　

    ISSN： 1348-0391

  84. In situ x-ray photoelectron spectroscopy studies of water on metals and oxides at ambient conditions International-coauthorship Peer-reviewed

    S. Yamamoto, H. Bluhm, K. Andersson, G. Ketteler, H. Ogasawara, M. Salmeron, A. Nilsson

    JOURNAL OF PHYSICS-CONDENSED MATTER　20　(18)　2008/05

    DOI： 10.1088/0953-8984/20/18/184025 　

    ISSN： 0953-8984

    eISSN： 1361-648X

  85. Autocatalytic water dissociation on Cu(110) at near ambient conditions International-coauthorship Peer-reviewed

    Klas Andersson, Guido Ketteler, Hendrik Bluhm, Susumu Yamamoto, Hirohito Ogasawara, Lars G. M. Pettersson, Miquel Salmeron, Anders Nilsson

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　130　(9)　2793-2797　2008/03

    DOI： 10.1021/ja073727x 　

    ISSN： 0002-7863

  86. Ultrafast energy flow in model biological membranes International-coauthorship Peer-reviewed

    Marc Smits, Avishek Ghosh, Jens Bredenbeck, Susumu Yamamoto, Michiel Muller, Mischa Bonn

    NEW JOURNAL OF PHYSICS　9　2007/10

    DOI： 10.1088/1367-2630/9/10/390 　

    ISSN： 1367-2630

  87. Bridging the pressure gap in water and hydroxyl chemistry on metal surfaces: The Cu(110) case International-coauthorship Peer-reviewed

    Klas Andersson, Guido Ketteler, Hendrik Bluhm, Susumu Yamamoto, Hirohito Ogasawara, Lars G. M. Pettersson, Miquel Salmeron, Anders Nilsson

    JOURNAL OF PHYSICAL CHEMISTRY C　111　(39)　14493-14499　2007/10

    DOI： 10.1021/jp073681u 　

    ISSN： 1932-7447

  88. The nature of water nucleation sites on TiO2(110) surfaces revealed by ambient pressure X-ray photoelectron spectroscopy International-coauthorship Peer-reviewed

    Guido Ketteler, Susumu Yamamoto, Hendrik Bluhm, Klas Andersson, David E. Starr, D. Frank Ogletree, Hirohito Ogasawara, Anders Nilsson, Miquel Salmeron

    JOURNAL OF PHYSICAL CHEMISTRY C　111　(23)　8278-8282　2007/06

    DOI： 10.1021/jp068606i 　

    ISSN： 1932-7447

  89. Hydroxyl-induced wetting of metals by water at near-ambient conditions International-coauthorship Peer-reviewed

    Susumu Yamamoto, Klas Andersson, Hendrik Bluhm, Guido Ketteler, David E. Starr, Theanne Schiros, Hirohito Ogasawara, Lars G. M. Pettersson, Miquel Salmeron, Anders Nilsson

    JOURNAL OF PHYSICAL CHEMISTRY C　111　(22)　7848-7850　2007/06

    DOI： 10.1021/jp0731654 　

    ISSN： 1932-7447

  90. The first layer of water on Rh(111): Microscopic structure and desorption kinetics Peer-reviewed

    Atsushi Beniya, Susumu Yamamoto, Kozo Mukai, Yoshiyuki Yamashita, Jun Yoshinobu

    JOURNAL OF CHEMICAL PHYSICS　125　(5)　2006/08

    DOI： 10.1063/1.2227393 　

    ISSN： 0021-9606

  91. Effects of interface roughness on the local valence electronic structure at the SiO2/Si interface: Soft X-ray absorption and emission study Peer-reviewed

    Y Yamashita, S Yamamoto, K Mukai, J Yoshinobu, Y Harada, T Tokushima, Y Takata, S Shin

    JOURNAL DE PHYSIQUE IV　132　259-262　2006/03

    DOI： 10.1051/jp4:2006132049 　

    ISSN： 1155-4339

  92. Direct observation of the site-specific valence electronic structure at SiO2/Si(111) interface

    Yamashita Y., Yamamoto S., Mukai K., Yoshinobu J., Harada Y., Tokushima T., Takeuchi T., Takata Y., Shin S., Akagi K., Tsuneyuki S.

    e-J. Surf. Sci. Nanotech.　4　280-284　2006

    Publisher: The Surface Science Society of Japan

    DOI： 10.1380/ejssnt.2006.280 　

    ISSN： 1348-0391

    More details Close

    For today's silicon based devices, understanding the SiO2/Si(111) interface on atomic level is an important subject for fabricating superior devices. However, despite of many studies on the SiO2/Si(111) interface, the interfacial valence electronic states have been typically evaluated as the average and not as individual states. In the present study, we successfully observed valence electronic states of particular atoms at the SiO2/Si(111) interface for the first time using soft x-ray absorption and emission spectroscopy. In addition, comparing the experimental results to first-principles calculations revealed local interfacial properties. [DOI: 10.1380/ejssnt.2006.280]

  93. Direct observation of site-specific valence electronic structure at the SiO2/Si interface Peer-reviewed

    Y Yamashita, S Yamamoto, K Mukai, J Yoshinobu, Y Harada, T Tokushima, T Takeuchi, Y Takata, S Shin, K Akagi, S Tsuneyuki

    PHYSICAL REVIEW B　73　(4)　280-284　2006/01

    DOI： 10.1103/PhysRevB.73.045336 　

    ISSN： 1098-0121

  94. Water adsorption on Rh(111) at 20 K: From monomer to bulk amorphous ice Peer-reviewed

    S Yamamoto, A Beniya, K Mukai, Y Yamashita, J Yoshinobu

    JOURNAL OF PHYSICAL CHEMISTRY B　109　(12)　5816-5823　2005/03

    DOI： 10.1021/jp044379d 　

    ISSN： 1520-6106

  95. Low-energy electron-stimulated chemical reactions of CO in water ice Peer-reviewed

    S Yamamoto, A Beniya, K Mukai, Y Yamashita, J Yoshinobu

    CHEMICAL PHYSICS LETTERS　388　(4-6)　384-388　2004/04

    DOI： 10.1016/j.cplett.2004.03.030 　

    ISSN： 0009-2614

  96. Vibrational structure in C 1s photoelectron spectra of ethylene on the Si(100)(2 x 1) surface Peer-reviewed

    Y Yamashita, S Machida, M Nagao, S Yamamoto, K Mukai, J Yoshinobu

    CHEMICAL PHYSICS LETTERS　374　(5-6)　476-481　2003/06

    DOI： 10.1016/S0009-2614(03)00732-2 　

    ISSN： 0009-2614

  97. Electronic states and chemical reactivity of Si(100)c(4 x 2) surface at low temperature studied by high resolution Si 2p core level photoelectron spectroscopy Peer-reviewed

    S Machida, M Nagao, S Yamamoto, Y Kakefuda, K Mukai, Y Yamashita, J Yoshinobu

    SURFACE SCIENCE　532　716-720　2003/06

    DOI： 10.1016/S0039-6028(03)00177-8 　

    ISSN： 0039-6028

    eISSN： 1879-2758

  98. Direct evidence for asymmetric dimer on Si(100) at low temperature by means of high-resolution Si 2p photoelectron spectroscopy Peer-reviewed

    Y Yamashita, S Machida, M Nagao, S Yamamoto, Y Kakefuda, K Mukai, J Yoshinobu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS　41　(3A)　L272-L274　2002/03

    DOI： 10.1143/JJAP.41.L272 　

    ISSN： 0021-4922

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Misc. 9

  1. Operando measurement of catalyst surface reactions using soft X-rays Invited Peer-reviewed

    Susumu Yamamoto

    Chemistry and Education　73　(5)　181-184　2025/05

  2. Operando Observation of Hydrogenation of Carbon Dioxide by Near Ambient Pressure X-ray Photoelectron Spectroscopy Invited Peer-reviewed

    KOITAYA Takanori, YAMAMOTO Susumu, MATSUDA Iwao, YOSHINOBU Jun, YOKOYAMA Toshihiko

    Vacuum and Surface Science　67　(3)　117-122　2024/03/10

    Publisher: The Japan Society of Vacuum and Surface Science

    DOI： 10.1380/vss.67.117 　

    ISSN： 2433-5835

    eISSN： 2433-5843

    More details Close

    Hydrogenation of carbon dioxide (CO2) on copper/zinc oxide-based catalysts was investigated using near-ambient pressure X-ray photoelectron spectroscopy (AP-XPS). An initial hydrogenation step of CO2 to formate was studied using Zn-deposited single-crystal Cu surfaces. CO2 activation on the model catalysts leads to the formation of carbonates (CO3) on the surface in the presence of near-ambient pressure CO2 and hydrogen (H2). The addition of a small amount of water to the feed gas enhances the hydrogenation of CO2 into formate. This indicates that hydroxyl produced through dissociative adsorption of water is a source for the CO2 hydrogenation observed under the present reaction conditions. We also performed operando spectroscopy of an industrial catalyst for methanol synthesis at higher pressure to reveal the chemical states of the catalyst and adsorbed intermediates during the catalytic reaction. In-situ formation of active catalytic sites was detected by operando hard X-ray photoelectron spectroscopy. Analysis of the reaction products in the presence of CO2 and H2 gases shows the formation of methanol and CO. The rate of methanol synthesis correlates with the dynamic changes in the chemical states of the catalyst, and the reaction intermediates adsorbed on the catalyst.

  3. Materials Science Research by Ambient Pressure X-Ray Photoelectron Spectroscopy Systems at Synchrotron Radiation Facilities in Japan: Applications in Energy, Catalysis, and Sensors Invited

    Susumu Yamamoto, Yasumasa Takagi, Takanori Koitaya, Ryo Toyoshima, Masafumi Horio, Iwao Matsuda, Hiroshi Kondoh, Toshihiko Yokoyama, Jun Yoshinobu

    Synchrotron Radiation News　35　(3)　19-25　2022/06/23

    Publisher: Informa UK Limited

    DOI： 10.1080/08940886.2022.2082168 　

    ISSN： 0894-0886

    eISSN： 1931-7344

  4. Operando measurements of catalytic surface reactions by soft X-ray ambient pressure XPS Invited Peer-reviewed

    S. Yamamoto, T. Koitaya, I. Matsuda, J. Yoshinobu

    Journal of the Japanese Society for Synchrotron Radiation Research　35　(3)　182-190　2022/05

  5. Lattice Dynamics of 1T'-MoTe2 Studied by Time-Resolved Transmission X-Ray Diffraction at SACLA

    下志万貴博, 中村飛鳥, 石坂香子, 田中良和, 田久保耕, 平田靖透, 和達大樹, 山本達, 松田巌, 池浦晃至, 高橋英史, 酒井英明, 石渡晋太郎, 富樫格, 大和田成起, 片山哲夫, 登野健介, 矢橋牧名, SHIN Shik

    X線分析の進歩　49　163‐168　2018/03/31

    ISSN： 0911-7806

  6. 時間分解軟X線光電子分光法：半導体表面における光励起キャリアの実時間観測

    山本達, 松田巌

    表面科学　37　(1)　9-13　2016

    DOI： 10.1380/jsssj.37.9 　

  7. フェムト秒時間分解光電子分光法によるグラフェンの超高速キャリアダイナミクスの追跡

    染谷隆史, 吹留博一, 石田行章, 吉田力矢, 山本達, 板谷治郎, 小森文夫, 辛埴, 松田巌

    表面科学　36　(8)　418-423　2015

    DOI： 10.1380/jsssj.36.418 　

  8. 時間分解軟X線光電子分光法による表面キャリアダイナミクス研究の進展 Invited Peer-reviewed

    山本達, 松田巌

    日本放射光学会誌「放射光」　27　(5)　241-252　2014

  9. 氷表面の物性と化学反応：振動分光をプローブとして

    吉信淳, 山本達, 奥山弘

    応用物理　73　(10)　1307-1311　2004

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Books and Other Publications 2

  1. 現代表面科学シリーズ「６．問題と解説で学ぶ表面科学」

    山本達

    共立出版　2013

    ISBN: 9784320033740

  2. 第５版実験化学講座：第２４巻 表面・界面 「放射光、 XAS、XES」

    小笠原寛人, 山本達

    丸善　2007

    ISBN: 9784621073230

Presentations 26

  1. Operando X-ray photoelectron spectroscopy at NanoTerasu: Current status and Perspectives

    Susumu Yamamoto

    2nd SRIS building exchange meeting　2025/01/22

  2. APXPS systems at NanoTerasu in Japan: Current status and Perspectives Invited

    Susumu Yamamoto

    11th Annual Ambient Pressure X-ray Photoelectron Spectroscopy Workshop (APXPS 2024)　2024/12/03

  3. Operando observation of photoexcited carriers and molecules at catalytic surfaces by time-resolved XPS Invited

    Susumu Yamamoto

    15th International Symposium on Atomic Level Characterizations for New Materials and Devices '24 (ALC '24)　2024/11/20

  4. Development of Soft X-ray Operando Measurement Platform for Observation of Real Materials under Real Environment ~Observe the materials as it is by soft X-rays~

    Tohoku University NanoTerasu Strategic Utilization, Promotion Suppor, Program Conference

    2024/11/13

  5. Future prospects for catalytic surface science opned by X-ray operando measurements at NanoTerasu

    Susumu Yamamoto

    1st SRIS building exchange meeting　2024/09/02

  6. Operando measurement of functional materials using NanoTerasu

    Susumu Yamamoto

    UDAC-SRIS-Niterra Joint Workshop　2024/07/19

  7. Development of picosecond time-resolved X-ray absorption spectroscopy using a time-of-flight electron analyzer

    S. Yamamoto, K. Ozawa, R. Hobara, I. Matsuda

    The Japanese Society for Synchrotron Radiation Research (JSSRR) Annual Meeting　2024/01/11

  8. Insertion devices and beamlines at the next generation synchrotron radiation facility NanoTerasu Invited

    Susumu Yamamoto

    The Physical Society of Japan (JPS) The 78th Annual Meeting　2023/09/16

  9. Development of time-resolved ambient pressure X-ray photoelectron spectroscopy system at SPring-8 BL07LSU

    S. Yamamoto, T. Koitaya, T. Wada, T. Sumi, M. Miyamoto, M. Horio, J. Yoshinobu, I. Matsuda

    IMS PES symposium "Seeds and needs for tomorrow's synchrotron radiation photoelectron spectroscopy research"　2023/07/29

  10. Development of time-resolved ambient pressure X-ray photoelectron spectroscopy system at SPring-8 BL07LSU

    S. Yamamoto, T. Koitaya, T. Wada, T. Sumi, M. Miyamoto, M. Horio, J. Yoshinobu, I. Matsuda

    International Workshop on Photoionization (IWP) Resonant Inelastic X-ray Scattering (RIXS) 2022 (IWP-RIXS 2022)　2022/11/16

  11. Hard X-ray Photoelectron Spectroscopy at NanoTerasu BL09U: Design and Applications

    Susumu Yamamoto

    Asia Oceania International Conference on Synchrotron Radiation Instruments 2022 (AO-SRI 2022)　2022/11/11

  12. BL09U Hard X-ray photoelectron spectroscopy (HAXPES)

    Susumu Yamamoto

    Next-generation synchrotron radiation facility coalition beamline end station application technology 1st seminar　2022/06/09

  13. BL09U (BL-I): Visualization of electronic structures of bulk materials by X-ray operando spectroscopy

    Susumu Yamamoto

    The 2nd briefing on beamlines at next-generation synchrotron radiation facility　2021/12/16

  14. Operando observation of photo-excited carriers and molecules at solid surfaces using time-resolved XPS Invited

    Susumu Yamamoto

    8th Annual Ambient Pressure X-ray Photoelectron Spectroscopy Virtual Workshop (APXPS 2021)　2021/12/10

  15. Catalytic surface reactions studied by operando soft X-ray spectroscopy Invited

    Susumu Yamamoto

    2021/11/30

  16. BL09U (BL-I) X-ray operando beamline: Overview and application in catalysis and materials science areas

    Susumu Yamamoto

    The 4th workshop of next-generation synchrotron radiation facility by Catalysis Society of Japan　2021/11/26

  17. Development of soft X-ray photoelectron spectroscopy systems at SPring-8 BL07LSU

    Susumu Yamamoto

    The first European-Japanese workshop on SX beamline automation and experimental optimization　2021/06/24

  18. Catalytic surface science opened by operando measurements using both soft and tender X-rays Invited

    Susumu Yamamoto

    The Physical Society of Japan (JPS) The 76th Annual Meeting　2021/03/15

  19. Real-time observation of photo-excited carriers in plasmonic nanomaterials: Toward operando observation of photocatalytic reactions Invited

    Susumu Yamamoto

    Join symposium of SPring-8 Users Community Microscopic/Nano material science group, SR surface science research division in Surface science society of Japan, and Probe microscopy division in Surface science society of Japan (Nanospec 2021)　2021/03/11

  20. Catalytic surface science opened by synchrotron radiation X-ray operando measurements: From SPring-8 BL07LSU to the next-generation synchrotron radiation facility Invited

    Susumu Yamamoto

    ISSP workshop "Key technologies for advanced soft X-ray science"　2021/03/04

  21. Catalytic surface reactions studied by operando soft X-ray spectroscopy Invited

    Susumu Yamamoto

    The 3rd Workshop of the Reaction Infography (R-ing) Unit　2020/12/10

  22. Present status and future prospect of catalysis science opened by ambient pressure X-ray photoelectron spectroscopy Invited

    Susumu Yamamoto

    Symposium for Reaction Path Search 2020 (SRPS2020)　2020/09/13

  23. Operando observation of photo-excited carriers and molecules at solid surfaces using soft X-ray spectroscopies Invited

    S. Yamamoto

    The 81st Okazaki Conference "Forefront of measurement technologies for surface chemistry and physics in real-space, k-space, and real-time"　2019/12/04

  24. Surface analysis by synchrotron radiation

    S. Yamamoto

    68th surface science basic lecture series "Basics and applications in surface and interface analysis"　2019/10/18

  25. Next generation surface and interface science promoted by operando soft X-ray spectroscopy

    S. Yamamoto

    19th Functional Materials Group seminar, ISSP, University of Tokyo　2019/10/16

  26. Sabatier reaction on a Ni/SiO2 catalyst studied by operando soft X-ray spectroscopies

    S. Yamamoto, J. Miyawaki, J. Tang, T. Koitaya, T. Tokunaga, Y. Shibata, Y. Kosegawa, K. Yamazoe, K. Mukai, S. Yoshimoto, Y. Harada, J. Yoshinobu, I. Matsuda

    The Japanese Society for Synchrotron Radiation Research (JSSRR) Annual Meeting　2019/01/11

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Research Projects 8

  1. マルチモーダルX線オペランド計測による触媒構造活性相関の解明

    山本 達

    Offer Organization: 科学技術振興機構

    System: 戦略的な研究開発の推進 戦略的創造研究推進事業 さきがけ

    Institution: 東北大学

    2024 - 2027

    More details Close

    反応中の触媒表面は構造ゆらぎがある動的な反応場ですが、構造ゆらぎと触媒活性の関係は明らかではありません。本研究では、3GeV高輝度放射光施設NanoTerasuの高輝度X線を利用した触媒表面の化学・電子状態と構造を同時計測可能なマルチモーダルX線オペランド計測システムを立上げ、触媒構造ゆらぎと触媒活性の相関を解明します。動的な触媒反応場という新学理に基づき、新規触媒開発設計指針の確立を目指します。

  2. 新規時間分解X線吸収・光電子分光法の開発と光励起キャリアダイナミクスへの展開 Competitive

    山本 達

    Offer Organization: 日本学術振興会

    System: 学術研究助成基金助成金・基盤研究(C)

    2019/04 - 2022/03

  3. 新規太陽エネルギー変換材料における光励起キャリア物理の探求 Competitive

    小澤 健一

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金・基盤研究(B)

    2016/04 - 2020/03

  4. 時間分解雰囲気X線光電子分光法によるプラズモニック化学反応の実時間オペランド観測 Competitive

    山本 達

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金・若手研究(A)

    2016/04 - 2019/03

  5. 軟X線共鳴カー効果による希薄磁性物質のスピンダイナミクス研究 Competitive

    松田 巌

    Offer Organization: 日本学術振興会

    System: 学術研究助成基金助成金・基盤研究(C)

    2014/04 - 2017/03

  6. 酸化物半導体・金属界面におけるキャリアダイナミクスの実時間観察 Competitive

    山本 達

    Offer Organization: 日本学術振興会

    System: 学術研究助成基金助成金・若手研究(B)

    2013/04 - 2016/03

  7. 酸化物半導体表面の光誘起電子輸送現象の研究 Competitive

    松田 巌

    Offer Organization: 日本学術振興会

    System: 学術研究助成基金助成金・基盤研究(C)

    2011/04 - 2013/03

  8. フェムト秒時間分解振動分光法を用いた生体膜における超高速ダイナミクスの研究 Competitive

    山本 達

    Offer Organization: 日本学術振興会

    System: 海外特別研究員

    2008/06 - 2009/10

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Teaching Experience 2

  1. 放射光ナノ構造可視化学　東北⼤学⼤学院⼯学研究科 応⽤物理学専攻

  2. 放射光ナノ構造可視化学　東北⼤学⼤学院⼯学研究科 応⽤物理学専攻

Academic Activities 2

  1. Chair, International conference: 11th Annual Ambient Pressure X-ray Photoelectron Spectroscopy Workshop (APXPS 2024)

    2024/12/03 - 2024/12/06

    Activity type: Academic society, research group, etc.

  2. Chair, The 7th JSSRR Research Meeting for Young scientists/ISSP Workshop "Physical Chemistry Revealed by Advanced Operando Observations"

    2014/09/29 - 2014/09/30

    Activity type: Academic society, research group, etc.