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Kenichi Kaminaga

Section

Graduate School of Engineering

Job title

Assistant Professor

Degree

博士（理学）（東京大学）
修士（理学）（東京大学）

researchmap

https://researchmap.jp/k1kmng

J-GLOBAL ID

201801003792660468

e-Rad No.

50831301

ORCID

https://orcid.org/0000-0001-7331-7453

Research History 4

2020/04 - Present

Tohoku University　Assistant Professor
2018/10 - 2020/03

AIMR　Research Associate
2018/04 - 2018/09

日本学術振興会特別研究員(PD)
2017/04 - 2018/03

日本学術振興会特別研究員(DC2)

Education 2

University of Tokyo　School of Science　Department of Chemistry

2013/04 - 2018/03
Tokyo Institute of Technology　Faculty of Engineering

2009/04 - 2013/03

Professional Memberships 5

American Chemical Society

2024/04 - Present
強的秩序とその操作に関わる研究会広報幹事

2020/04 - Present
日本表面真空学会

2023 -
American Physical Society
THE JAPAN SOCIETY OF APPLIED PHYSICS

Research Interests 5

電気化学
Spintronics
Oxide electronics
Superconductivity
Thin film

Research Areas 3

Nanotechnology/Materials / Applied materials /
Nanotechnology/Materials / Crystal engineering /
Nanotechnology/Materials / Thin-film surfaces and interfaces /

Awards 6

Best Poster Award

2024/11　Core Research Cluster for Materials Science Organization for Advanced Studies, Tohoku University　Spin Dynamics and Polarized Neutron Reflectometry of Compositionally-Graded Ru Doped Perovskite Manganese Oxide Thin Films
FGMs奨励賞

2023/09　Functionally Graded Materials FORUM of Japan
Featured

2019/04　High electron mobility with significant spin-orbit coupling in rock-salt YbO epitaxial thin film
第43回（2017年秋季）応用物理学会講演奨励賞

2018/03　応用物理学会
第78回応用物理学会秋季学術講演会注目講演

2017/09　応用物理学会　LaOエピタキシャル薄膜の超伝導
Editor's Picks

2016/03　Applied Physics Letters　A divalent rare earth oxide semiconductor: Yttrium monoxide

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Papers 43

Infrared Laser Deposition of High-Quality KBH₄ Epitaxial Thin Films as an Epitaxial Template for Heterostructures of Alkali Borohydrides Peer-reviewed

Keita Sasaki, Hibiki Murakami, Kenichi Kaminaga, Fumitsuna Teshima, Ayumu Kikuchi, Kiyohisa Tanaka, Shingo Maruyama, Yuji Matsumoto

Crystal Growth & Design　25　(12)　4494-4502　2025/05/12
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.cgd.5c00396 　

ISSN： 1528-7483

eISSN： 1528-7505
Ferromagnetic semiconductor EuO thin films characterized by vacuum electrochemical process with ionic liquid Peer-reviewed

Y. Sano, K. Kaminaga, S. Maruyama, Y. Matsumoto

Materials Science in Semiconductor Processing　181　108629-108629　2024/06/20
Publisher: Elsevier BV
DOI： 10.1016/j.mssp.2024.108629 　

ISSN： 1369-8001
Stable nature of [BH4]− ions in deliquescence thin-film NaBH4 and humidity control of their decomposition toward hydrogen supply and storage application Peer-reviewed

Takumi Sato, Keita Sasaki, Kenichi Kaminaga, Hibiki Murakami, Shingo Maruyama, Yuji Matsumoto

International Journal of Hydrogen Energy　74　232-237　2024/06/14
Publisher: Elsevier BV
DOI： 10.1016/j.ijhydene.2024.06.139 　

ISSN： 0360-3199
Enhanced Curie temperature near 300 K in highly crystalline GdO epitaxial thin films concomitant with an anomalous Hall effect Peer-reviewed

Takato Fukasawa, Dai Kutsuzawa, Daichi Oka, Kenichi Kaminaga, Daichi Saito, Hirokazu Shimizu, Hiroshi Naganuma, Tomoteru Fukumura

Journal of Materials Chemistry C　12　7652-7657　2024/05/10
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d4tc00738g 　

ISSN： 2050-7526

eISSN： 2050-7534

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The Curie temperature of a ferromagnetic semiconductor GdO was enhanced to 303 K due to the improved crystallinity and electron mobility.
Elevating the Superconducting Temperature in Epitaxially Stabilized Rock-Salt NbO Peer-reviewed

Rintaro Kimura, Kenichi Kaminaga, Tomoki Kobayashi, Yasumichi Cho, Shingo Maruyama, Atsutaka Maeda, Yuji Matsumoto

Chemistry of Materials　36　(10)　5028-5036　2024/05/09
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.chemmater.4c00097 　

ISSN： 0897-4756

eISSN： 1520-5002
Formation process of organic–inorganic layered hybrid materials from vacuum-deposited bilayer thin films of CH3(CH2)11NH3I and SnI2 by post-annealing

Ren Abe, Shingo Maruyama, Kenichi Kaminaga, Yuji Matsumoto

Chemistry Letters　53　(5)　2024/04/17
Publisher: Oxford University Press (OUP)
DOI： 10.1093/chemle/upae073 　

ISSN： 0366-7022

eISSN： 1348-0715

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Abstract We investigated the formation process of Sn-based 2D organic–inorganic layered hybrid materials from sequentially vacuum-deposited bilayer thin films of CH3(CH2)11NH3I (DDAI) and SnI2 by post-annealing. DDA2SnI4 or DDASnI3 was selectively formed depending on the DDAI/ SnI2 molar ratio and the annealing temperature. It was revealed that DDASnI3 is formed via the phase transformation of DDA2SnI4 that has been formed at a low temperature from a SnI2-rich bilayer thin film by a temperature increase.
Ferroelectric polycrystalline Bi2SiO5 thin films on Pt-covered Si substrates prepared by pulsed laser deposition combined with post-annealing

Haruto Takahashi, Shingo Maruyama, Hiroshi Naganuma, Hiroki Taniguchi, Ryota Takahashi, Shintaro Yasui, Kenichi Kaminaga, Yuji Matsumoto

Journal of Alloys and Compounds　988　174195-174195　2024/03/17
Publisher: Elsevier BV
DOI： 10.1016/j.jallcom.2024.174195 　

ISSN： 0925-8388
Infrared laser deposition of high-quality CsBH₄ epitaxial thin films stable under atmospheric conditions Peer-reviewed

Hibiki Murakami, Kenichi Kaminaga, Rintaro Kimura, Shingo Maruyama, Yuji Matsumoto

Japanese Journal of Applied Physics　63　(2)　020905-020905　2024/02/19
Publisher: IOP Publishing
DOI： 10.35848/1347-4065/ad2623 　

ISSN： 0021-4922

eISSN： 1347-4065

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Abstract We have demonstrated the growth of CsBH₄ (001) epitaxial thin films utilizing an IR laser deposition technique. The thin film exhibited coherent growth with a tensile strain from the substrate, resulting in its crystallinity superior to other kinds of metal borohydride thin films reported in earlier studies. Moreover, the notable chemical stability of CsBH₄ enabled surface morphological and optical characterizations even under atmospheric conditions. The optical transition energy values estimated from a Tauc plot were found smaller than the theoretical ones previously reported, and DFT calculations suggested a partial deficiency of Cs⁺ or [BH₄]⁻ created in the thin films.
Epitaxial growth of copper phthalocyanine on a large single-grain of thin film alkyl perylene diimide

Shuhei Tanaka, Yusuke Takagawa, Shingo Maruyama, Yosei Shibata, Tomoyuki Koganezawa, Kenichi Kaminaga, Hideo Fujikake, Yuji Matsumoto

Japanese Journal of Applied Physics　63　(2)　025502-025502　2024/02/06
Publisher: IOP Publishing
DOI： 10.35848/1347-4065/ad1847 　

ISSN： 0021-4922

eISSN： 1347-4065

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Abstract In this work, heteroepitaxial growth of copper phthalocyanine (CuPc) on a large single-grain of thin film N,N’-Di-n-octyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C8) was investigated. Vacuum-deposited PTCDI-C8 thin films at a growth temperature of ∼180 °C exhibited large grain growth of several hundred micrometers or more in size, and their surface consisted of stripe islands with molecular steps. CuPc deposited at 180 °C on this PTCDI-C8 large grain underlayer was found to grow epitaxially with its needle-like crystals dominantly oriented in one unique direction. The mechanism of the observed epitaxy is discussed based on the results of in-plane X-ray diffraction and the initial growth morphology.
Near room temperature multilevel resistive switching memory with thin film ionic liquid crystals

Wenzhong Zhang, Shingo Maruyama, Kenichi Kaminaga, Yuji Matsumoto

Journal of Materials Chemistry C　12　(25)　9321-9327　2024
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d4tc00796d 　

ISSN： 2050-7526

eISSN： 2050-7534

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Multilevel operation of nonvolatile resistive random-access memory devices was demonstrated using thin films of an ionic liquid crystal, 1-dodecyl-3-methylimidazolium tetrafluoroborate ([C₁₂mim][BF₄]), as a resistive switching layer.
NaCl flux growth of non-polar m-plane ZnO epitaxial thin film on c-plane sapphire substrate Peer-reviewed

Kouki Kuroda, Kenichi Kaminaga, Takuto Tobe, Shingo Maruyama, Yuji Matsumoto

Thin Solid Films　140169-140169　2023/12/09
Publisher: Elsevier BV
DOI： 10.1016/j.tsf.2023.140169 　

ISSN： 0040-6090
Ionic Liquid Crystal Thin Film as Switching Layer in Nonvolatile Resistive Memory

Wenzhong Zhang, Haruka Komatsu, Shingo Maruyama, Kenichi Kaminaga, Yuji Matsumoto

ACS Applied Materials & Interfaces　2023/11/01
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsami.3c13980 　

ISSN： 1944-8244

eISSN： 1944-8252
Reaction Dynamics of C(NH₂)₃SnI₃ Formation from Vacuum-Deposited C(NH₂)₃I and SnI₂ Bilayer Thin Films Investigated by In Situ Infrared Multiple-Angle Incidence-Resolved Spectroscopy

Kazuki Shimada, Shingo Maruyama, Tetsuhiko Miyadera, Kenichi Kaminaga, Yuji Matsumoto

ACS Applied Materials & Interfaces　2023/09/14
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsami.3c08708 　

ISSN： 1944-8244

eISSN： 1944-8252
Ionic Liquid-Assisted Vacuum Deposition of Organic Ionic Plastic Crystal Thin Films

Yota Matsuoka, Shingo Maruyama, Kenichi Kaminaga, Yuji Matsumoto

ECS Journal of Solid State Science and Technology　12　(7)　074006-074006　2023/07/01
Publisher: The Electrochemical Society
DOI： 10.1149/2162-8777/ace797 　

ISSN： 2162-8769

eISSN： 2162-8777

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We report the preparation of thin films of 1-ethyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide ([C₂mpyr][TFSA]), which is among organic ionic plastic crystals, using an ionic liquid (IL) -assisted vacuum deposition method. 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([C₂mim][TFSA]), a well-known IL, was used as a solvent to assist the crystal growth. The effect of the IL on the growth morphology and crystal orientation of the thin films was investigated. It was found that the IL-assisted growth resulted in the preferential growth of (100)-oriented [C₂mpyr][TFSA] crystallites, whose morphology depended on the deposition temperature and the presence of IL. Growth models for [C₂mpyr][TFSA] thin films under different growth conditions are proposed and discussed.
Preparation of High-quality Vapor-deposited Crystalline Organic Thin Films through Crystallization from Their Liquid Crystal Phase

Shingo MARUYAMA, Haruka KOMATSU, Kanae TSUJITA, Kenichi KAMINAGA, Yuji MATSUMOTO

Vacuum and Surface Science　66　(4)　209-214　2023/04/10
Publisher: Surface Science Society Japan
DOI： 10.1380/vss.66.209 　

ISSN： 2433-5835

eISSN： 2433-5843
Giant Grain Growth of 2,5-Di(2-thienyl)-1H-pyrrole Crystal Films: Kinetic Analysis of Self-Crystallization from Its Supercooled Liquid in Vacuum Deposition

Keiichiro Seta, Shingo Maruyama, Tomoyuki Koganezawa, Kenichi Kaminaga, Yuji Matsumoto

Crystal Growth & Design　23　(5)　3731-3739　2023/04/03
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acs.cgd.3c00128 　

ISSN： 1528-7483

eISSN： 1528-7505
Thickness-dependent magnetotransport properties of rocksalt NdO epitaxial thin films: observation of a ferromagnetic phase far above the Curie temperature

Daichi Saito, Daichi Oka, Kenichi Kaminaga, Miho Kitamura, Daisuke SHIGA, Hiroshi Kumigashira, Tomoteru Fukumura

Journal of Materials Chemistry C　2023
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d3tc02478d 　

ISSN： 2050-7526

eISSN： 2050-7534

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We investigated magnetotransport properties of rock-salt NdO (001) epitaxial thin films with different thicknesses. For the thickness of 45 nm, the NdO thin film behaved as a ferromagnetic metal with...
Directional lateral crystallization of vacuum-deposited C8-BTBT thin films via liquid crystal phase by a seeded horizontal temperature gradient cooling technique

Kanae Tsujita, Shingo Maruyama, Yosesi Shibata, Tomoyuki Koganezawa, Kenichi Kaminaga, Hideo Fujikake, Yuji Matsumoto

CrystEngComm　25　(1)　64-71　2023
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d2ce01280d 　

eISSN： 1466-8033

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C8-BTBT thin films with large domain sizes were grown by vacuum deposition and subsequent post-annealing and cooling crystallization via liquid crystal phase with a constant horizontal temperature gradient.
A high-T_C heavy rare earth monoxide semiconductor TbO with a more than half-filled 4f orbital

Satoshi Sasaki, Daichi Oka, Kenichi Kaminaga, Daichi Saito, Taku Yamamoto, Nobuto Abe, Hirokazu Shimizu, Tomoteru Fukumura

Dalton Transactions　2022/10/12
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d2dt02710k 　

ISSN： 1477-9226

eISSN： 1477-9234

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A rock-salt structured terbium monoxide, TbO, was synthesized for the first time in the solid phase. This TbO is a high T_C (231 K) ferromagnetic semiconductor, probably forming 4f and 5f magnetic sublattices at a single magnetic Tb²⁺ site.
Impact of band-gap graded structures artificially implemented in Mg–ZnO epitaxial films on photoelectrochemical properties

Yuta Sato, Kenichi Kaminaga, Ryota Takahashi, Shingo Maruyama, Yuji Matsumoto

Catalysis Science & Technology　2022/09/07
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d2cy01178f 　

ISSN： 2044-4753

eISSN： 2044-4761

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The impact of band gap-graded structures artificially implemented in a photocatalyst on the photoelectrochemical properties was investigated in a model system of epitaxial thin film Mg–ZnO.
Rocksalt CeO epitaxial thin film as a heavy-fermion system transiting from p-type metal to partially compensated n-type metal by 4f delocalization

Nobuto Abe, Daichi Oka, Kenichi Kaminaga, Daisuke Shiga, Daichi Saito, Taku Yamamoto, Noriaki Kimura, Hiroshi Kumigashira, Tomoteru Fukumura

Physical Review B　106　(12)　2022/09/06
Publisher: American Physical Society (APS)
DOI： 10.1103/physrevb.106.125106 　

ISSN： 2469-9950

eISSN： 2469-9969
Direct visualization of high-temperature dissolution dynamics of α-Al2O3(0 0 0 1) with an oxide-based melt flux of Sn:BiOx

Yuri Ishizaki, Kenichi Kaminaga, Shingo Maruyama, Yuji Matsumoto

Chemical Physics Letters　803　139869-139869　2022/07/16
Publisher: Elsevier BV
DOI： 10.1016/j.cplett.2022.139869 　

ISSN： 0009-2614
Compositionally graded crystals as a revival approach to new crystal engineering for exploration of novel functionalities Invited Peer-reviewed

Yuji Matsumoto, Shingo Maruyama, Kenichi Kaminaga

CrystEngComm　24　(13)　2359-2369　2022/02/26
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d2ce00041e 　

eISSN： 1466-8033

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Nanoscale compositionally graded crystals (NCGCs), whose original concept can date back to the mid 1980s, is proposed as a revival approach to new crystal engineering. The NCGCs are expected to...
Rock salt-type HoO epitaxial thin film as a heavy rare-earth monoxide ferromagnetic semiconductor with a Curie temperature above 130 K Peer-reviewed

Tahta Amrillah, Daichi Oka, Hirokazu Shimizu, Satoshi Sasaki, Daichi Saito, Kenichi Kaminaga, Tomoteru Fukumura

Applied Physics Letters　120　(8)　082403-082403　2022/02/21
Publisher: AIP Publishing
DOI： 10.1063/5.0081040 　

ISSN： 0003-6951

eISSN： 1077-3118

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Ho monopnictides (Ho Pn: Pn = N, P, As, Sb, and Bi) and monochalcogenides (Ho Ch: Ch = S, Se, and Te) are known to possess a nontrivial magnetic structure, while solid-phase HoO has not been synthesized yet. In this study, a rock salt-type HoO epitaxial thin film was grown by using the pulsed laser deposition method, which had a bandgap of 0.11 eV and tunable electrical conduction via its oxygen nonstoichiometry. Its Curie temperature, above 130 K, was much higher than those of Ho Pn and Ho Ch, most likely due to an enhanced direct exchange interaction. Similar to Ho Pn and Ho Ch, a HoO thin film showed a metamagnetic behavior below the Curie temperature in spite of its dominant ferromagentic ordering.
Electric Double Layer Action of High-quality Ionic Liquid Crystal Thin Films

Haruka Komatsu, Miyuki Tanaka, Kenichi Kaminaga, Shingo Maruyama, Yuji Matsumoto

Chemistry Letters　51　(2)　162-165　2022/02/05
Publisher: The Chemical Society of Japan
DOI： 10.1246/cl.210692 　

ISSN： 0366-7022

eISSN： 1348-0715
Rocksalt-type PrO epitaxial thin film as a weak ferromagnetic Kondo lattice Peer-reviewed

Hirokazu Shimizu, Daichi Oka, Kenichi Kaminaga, Daichi Saito, Taku Yamamoto, Nobuto Abe, Noriaki Kimura, Daisuke Shiga, Hiroshi Kumigashira, Tomoteru Fukumura

Physical Review B　105　(1)　014442　2022/01/31
Publisher: American Physical Society (APS)
DOI： 10.1103/physrevb.105.014442 　

ISSN： 2469-9950

eISSN： 2469-9969
Room-Temperature Preparation of Ta Ions-Containing Ionic Liquid and its Vapor Deposition toward Ta-Oxide Film Coating Peer-reviewed

Nana Hozuki, Kenichi Kaminaga, Shingo Maruyama, Daisuke Shiga, Hiroshi Kumigashira, Hidetaka Takato, Michio Kondo, Yuji Matsumoto

Journal of The Electrochemical Society　169　(1)　013504-013504　2022/01/27
Publisher: The Electrochemical Society
DOI： 10.1149/1945-7111/ac48c5 　

ISSN： 0013-4651

eISSN： 1945-7111
Vapour–liquid–solid-like growth of high-quality and uniform 3C–SiC heteroepitaxial films on α-Al2O3(0001) substrates Peer-reviewed

Naoki Sannodo, Asuka Osumi, Kenichi Kaminaga, Shingo Maruyama, Yuji Matsumoto

CrystEngComm　23　(8)　1709-1717　2021/01
Publisher: Royal Society of Chemistry (RSC)
DOI： 10.1039/d0ce01793k 　

eISSN： 1466-8033

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<p>We employ our pulsed laser deposition system with rapid beam deflection to demonstrate the heteroepitaxial growth of 3C–SiC thin films by a vapour–liquid–solid-like mechanism by alternating deposition of SiC and NiSi₂ flux in nanoscale.</p>
Hard and soft x-ray photoemission spectroscopy study of the new Kondo system SmO thin film International-journal Peer-reviewed

Shoya Sakamoto, Kenichi Kaminaga, Daichi Oka, Ryu Yukawa, Masafumi Horio, Yuichi Yokoyama, Kohei Yamamoto, Kou Takubo, Yosuke Nonaka, Keisuke Koshiishi, Masaki Kobayashi, Arata Tanaka, Akira Yasui, Eiji Ikenaga, Hiroki Wadati, Hiroshi Kumigashira, Tomoteru Fukumura, Atsushi Fujimori

Physical Review Materials　4　(9)　095001　2020/09/18
Publisher: American Physical Society (APS)
DOI： 10.1103/PhysRevMaterials.4.095001 　

eISSN： 2475-9953
Width-induced metal–insulator transition in SrVO3 lateral nanowires spontaneously formed on the ultrathin film Peer-reviewed

Hirofumi Oka, Yoshinori Okada, Kenichi Kaminaga, Daichi Oka, Taro Hitosugi, Tomoteru Fukumura

Applied Physics Letters　117　(5)　051603-051603　2020/08/03
Publisher: AIP Publishing
DOI： 10.1063/5.0018240 　

ISSN： 0003-6951

eISSN： 1077-3118
Rock salt structure GdO epitaxial thin film with a high ferromagnetic Curie temperature Peer-reviewed

Taku Yamamoto, Kenichi Kaminaga, Daichi Saito, Daichi Oka, Tomoteru Fukumura

Applied Physics Letters　117　(5)　052402-052402　2020/08/03
Publisher: AIP Publishing
DOI： 10.1063/5.0017954 　

ISSN： 0003-6951

eISSN： 1077-3118
Temperature dependence of dielectric functions in Yb2O3 and Lu2O3 epitaxial thin films on sapphire (0001) Peer-reviewed

Takayuki Makino, Takaho Asai, Tomoya Takeuchi, Kenichi Kaminaga, Daichi Oka, Tomoteru Fukumura

Japanese Journal of Applied Physics　2019/10
Heteroepitaxy of rock-salt superconductor/ferromagnet thin film: LaO/EuO Peer-reviewed

Kenichi Kaminaga, Daichi Oka, Hirofumi Oka, Tomoteru Fukumura

Chemistry of Letters　48　(10)　1244-1247　2019/09

DOI： 10.1246/cl.190460 　
Itinerant ferromagnetism in rocksalt NdO epitaxial thin films Peer-reviewed

D. Saito, K. Kaminaga, D. Oka, T. Fukumura

Physics Review Materials　3　(064407)　1-4　2019/06

DOI： 10.1103/PhysRevMaterials.3.064407 　
High electron mobility with significant spin-orbit coupling in rock-salt YbO epitaxial thin film Peer-reviewed

Taku Yamamoto, Kenichi Kaminaga, Daichi Saito, Daichi Oka, Tomoteru Fukumura

Applied Physics Letters　114　(162104)　1-4　2019/04
Publisher: AIP Publishing
DOI： 10.1063/1.5085938 　

ISSN： 0003-6951

eISSN： 1077-3118
Application of X‐ray fluorescence holography to the analysis of the interior and surface of an yttrium oxide thin film Peer-reviewed

Jens R Stellhorn, Shinya Hosokawa, Naohisa Happo, Hiroo Tajiri, Tomohiro Matsushita, Kenichi Kaminaga, Tomoteru Fukumura, Tetsuya Hasegawa, Koji Kimura, Kouichi Hayashi

Surface and Interface Analysis　51　(1)　70-73　2018/12
New Lutetium Oxide: Electrically Conducting Rock-Salt LuO Epitaxial Thin Film Peer-reviewed

K. Kaminaga, D. Oka, T. Hasegawa, T. Fukumura

ACS Omega　3　(10)　12501-12504　2018/10
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsomega.8b02082 　

ISSN： 2470-1343

eISSN： 2470-1343
Superconductivity of Rock-Salt Structure LaO Epitaxial Thin Film Peer-reviewed

Kenichi Kaminaga, Daichi Oka, Tetsuya Hasegawa, Tomoteru Fukumura

Journal of the American Chemical Society　140　(22)　6754-6757　2018/06/06

DOI： 10.1021/jacs.8b03009 　

ISSN： 1520-5126 0002-7863
A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film Peer-reviewed

J. R. Stellhorn, S. Hosokawa, N. Happo, H. Tajiri, T. Matsushita, K. Kaminaga, T. Fukumura, T. Hasegawa, K. Hayashi

Journal of Applied Crystallography　50　(6)　1583-1589　2017/12

DOI： 10.1107/S1600576717012821 　

ISSN： 0021-8898

eISSN： 1600-5767
Samarium monoxide epitaxial thin film as a possible heavy-fermion compound Peer-reviewed

Yutaka Uchida, Kenichi Kaminaga, Tomoteru Fukumura, Tetsuya Hasegawa

PHYSICAL REVIEW B　95　(12)　2017/03

DOI： 10.1103/PhysRevB.95.125111 　

ISSN： 2469-9950

eISSN： 2469-9969
A divalent rare earth oxide semiconductor: Yttrium monoxide Peer-reviewed

Kenichi Kaminaga, Ryosuke Sei, Kouichi Hayashi, Naohisa Happo, Hiroo Tajiri, Daichi Oka, Tomoteru Fukumura, Tetsuya Hasegawa

APPLIED PHYSICS LETTERS　108　(12)　2016/03

DOI： 10.1063/1.4944330 　

ISSN： 0003-6951

eISSN： 1077-3118
beta-Ga2O3 Single Crystal as a Photoelectrode for Water Splitting Peer-reviewed

Takayoshi Oshima, Kenichi Kaminaga, Hisanori Mashiko, Akira Mukai, Kohei Sasaki, Takekazu Masui, Akito Kuramata, Shigenobu Yamakoshi, Akira Ohtomo

JAPANESE JOURNAL OF APPLIED PHYSICS　52　(11)　2013/11

DOI： 10.7567/JJAP.52.111102 　

ISSN： 0021-4922

eISSN： 1347-4065
Formation of Semi-Insulating Layers on Semiconducting beta-Ga2O3 Single Crystals by Thermal Oxidation Peer-reviewed

Takayoshi Oshima, Kenichi Kaminaga, Akira Mukai, Kohei Sasaki, Takekazu Masui, Akito Kuramata, Shigenobu Yamakoshi, Shizuo Fujita, Akira Ohtomo

JAPANESE JOURNAL OF APPLIED PHYSICS　52　(5)　2013/05

DOI： 10.7567/JJAP.52.051101 　

ISSN： 0021-4922

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Misc. 5

Topics Invited

CERAMICS JAPAN　59　(9)　647　2024/08/25
ハイエントロピー酸化物の電極触媒活性 Invited

神永健一

月刊化学　79　(1)　60-61　2023/12
高い電気伝導性をもつ希土類単純酸化物 Invited

神永健一, 岡大地, 福村知昭

東北大学極低温科学センターだより　20　2-5　2019/11
2 価の希土類イオン化合物の新展開ー錯体から無機固体まで Invited

神永健一, 福村知昭

月刊化学　73　(11)　64-65　2018/10
Finding superconductivity in unexpected places

Tomoteru Fukumura, Kenichi Kaminaga

AiM Research　2018

Presentations 86

Stable nature of [BH4]− ions in deliquescence thin-film NaBH4 and humidity control of their decomposition toward hydrogen supply and storage application

Kenichi Kaminaga, Takumi Sato, Keita Sasaki, Hibiki Murakami, Shingo Maruyama, Yuji Matsumoto

Joint March Meeting and April Meeting: Global Physics Summit 2025　2025/03/20
Superconductivity of thin film rock-salt NbO emerging in a free-standing state

Kenichi Kaminaga, Rintaro Kimura, Keisuke Haruki, Shingo Maruyama, Yuji Matsumoto

Joint March Meeting and April Meeting: Global Physics Summit 2025　2025/03/20
Spin Dynamics and Polarized Neutron Reflectometry of Compositionally-Graded Ru Doped Perovskite Manganese Oxide Thin Films

Kenichi Kaminaga, Gaku Sato, Saijian Ajia, Takayasu Hanashima, Kazuhiro Akutsu, Rintaro Kimura, Hiroshi Naganuma, Shingo Maruyama, Hiroyuki Aoki, Yasushi Endo, Yuji Matsumoto

The 8th Symposium for the Core Research Clusters for Materials Science and Spintronics and the 7th Symposium on International Joint Graduate Programs in Materials Science and Spintronics (CRCGP-MSSP2024)　2024/11/19
One-pot Synthesis of Layered Borophene Oxide Films via Alkali Metal Borohydride by Vacuum Deposition International-presentation

Keita Sasaki, Shunsuke Shimizu, Kenichi Kaminaga, Takeharu Yoshii, Hibiki Murakami, Takumi Sato, Shingo Maruyama, Hirotomo Nishihara, Yuji Matsumoto

The 10th International Symposium on Surface Science (ISSS-10)　2024/10/21
Site-Selective Substitution Strategy in Lithium-Ion Battery Cathode Epitaxial Thin Film Platform via Introduction of Compositionally-Graded Structure

Kenichi Kaminaga, Kanta Suzuki, Daigo Nanasawa, Shintaro Yasui, Shingo Maruyama, Yuji Matsumoto

17th International Symposium on Functionally Graded Materials (ISFGM 2024)　2024/09/30
Polarized Neutron Reflectometry and Spin Dynamics of Compositionally-Graded Ru Doped Perovskite Manganese Oxide Thin Films

2024/09/20
岩塩型NbOの自立膜アプローチによる超伝導誘起

春木啓佑, 木村凛太郎, 神永健一, 丸山伸伍, 松本祐司

第85回応用物理学会秋季学術講演会　2024/09/17
Observation of Precursor Film Growth from Smectic Liquid Crystal State of Vacuum-deposited 4,4'-Didodecyloxyazoxybenzene Thin Film

MEIYU CHEN, Shingo Maruyama, Keita Aizawa, Naoya Otsuka, Eita Shoji, Kenichi Kaminaga, Yuji Matsumoto

2024/09/18
C8-BTBT薄膜における液晶状態からの結晶化挙動の膜厚による制御

中野佑亮, 丸山伸伍, 神永健一, 松本祐司

第85回応用物理学会秋季学術講演会　2024/09/18
ヨウ化ドデシルアンモニウムのバルクと薄膜における相変化

阿部錬, 丸山伸伍, 神永健一, 松本祐司

第85回応用物理学会秋季学術講演会　2024/09/16
長鎖アルキルイミダゾリウム系イオン液体薄膜のポストアニール過程における構造変化と準安定スメクチック液晶相

君塚文彦, 丸山伸伍, 神永健一, 松本祐司

第85回応用物理学会秋季学術講演会　2024/09/16
アルカリ金属水素化ホウ素化合物を出発物質とする真空蒸着による層状ボロフェン酸化物薄膜の合成

佐々木啓太, 清水俊介, 神永健一, 吉井丈晴, 村上響, 佐藤匠, 丸山伸伍, 西原洋知, 松本祐司

第85回応用物理学会秋季学術講演会　2024/09/16
アルカリ金属水素化ホウ素化合物のエピタキシャルヘテロ接合

村上響, 神永健一, 丸山伸伍, 松本祐司

第85回応用物理学会秋季学術講演会　2024/09/16
Possible Superconducting State in Ir-doped Perovskite Manganese Oxides Invited

Kenichi Kaminaga, Yuji Matsumoto, Shingo Maruyama

MRM2023/IUMRS-ICA2023　2023/12/14
Electrical transport properties of rock-salt structured Nb(O, N) epitaxial thin films

Yasumichi Cho, Kenichi Kaminaga, Shingo Maruyama, Yuji Matsumoto

日本表面真空学会学術講演会　2023/10/31
Compositionally-graded epitaxial thin films of La-doped LiCoO2 for lithium-ion secondary batteries

Kenichi Kaminaga, Kanta Suzuki, Daigo Nanasawa, Shintaro Yasui, Shingo Maruyama, Yuji Matsumoto

日本表面真空学会学術講演会　2023/10/31
Growth and orientation control of organic ionic plastic crystals by ionic liquid-assisted vacuum deposition

Yota Matsuoka, Shingo Maruyama, Kenichi Kaminaga, Yuji Matsumoto

日本表面真空学会学術講演会　2023/10/31
Magnetization of compositionally-graded Ru-substituted LSMO epitaxial thin films

Gaku Sato, Kenichi Kaminaga, Hiroshi Naganuma, Shingo Maruyama, Yuji Matsumoto

日本表面真空学会学術講演会　2023/10/31
水蒸気暴露によるNaBH4薄膜の可逆的な固液形態変化の制御

佐藤匠, 神永健一, 丸山伸伍, 松本祐司

第84回応用物理学会秋季学術講演会　2023/09/21
[分科内招待講演] Ir置換ペロブスカイトマンガン酸化物における高温超伝導の可能性 Invited

神永健一, 丸山伸伍, 松本祐司

第84回応用物理学会秋季学術講演会　2023/09/23
岩塩型NbO薄膜における格子歪制御による超伝導の発現

木村凜太郎, 神永健一, 丸山伸伍, 松本祐司

第84回応用物理学会秋季学術講演会　2023/09/20
傾斜組成 La ドープLiCoO2エピタキシャル薄膜の電池特性評価

神永健一, 鈴木貫太, 七澤太梧, 安井伸太郎, 丸山伸伍, 松本祐司

第32回傾斜機能材料シンポジウム　2023/09/14
Growth behavior of CuPc thin films on PTCDI-C8 large grains

Shuhei Tanaka, Shingo Maruyama, Kenichi Kaminaga, Yuji Matsumoto

International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan　2023/09/08
Fabrication of tin-based layered organic-inorganic hybrid perovskite thin films by two-step vacuum deposition and post-annealing

Ren Abe, Shingo Maruyama, Kenichi Kaminaga, Yuji Matsumoto

International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan　2023/09/08
Humidity control of reversible change of solid-liquid form in NaBH4 thin films

Takumi Sato, Kenichi Kaminaga, Shingo Maruyama, Yuji Matsumoto

International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan　2023/09/08
Magnetization of compositionally-graded Ru-substituted LSMO epitaxial thin films

Gaku Sato, Kenichi Kaminaga, Hiroshi Naganuma, Shingo Maruyama, Yuji Matsumoto

International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan　2023/09/08
岩塩型 NbO 薄膜の格子緩和がもたらす超伝導の発現

木村凜太郎, 長泰亨, 神永健一, 丸山伸伍, 松本祐司

公益社団法人日本セラミックス協会第36回秋季シンポジウム　2023/09/07
岩塩型 Nb(O, N)エピタキシャル薄膜の電気輸送特性評価

長泰亨, 神永健一, 丸山伸伍, 松本祐司

公益社団法人日本セラミックス協会第36回秋季シンポジウム　2023/09/07
3 元系リチウムイオン電池正極材の傾斜組成エピタキシャル薄膜の作製と評価

戸部匠人, 神永健一, 武井奏介, 安井伸太郎, 丸山伸伍, 松本祐司

公益社団法人日本セラミックス協会第36回秋季シンポジウム　2023/09/06
傾斜組成構造を有する La ドープ LiCoO2エピタキシャル薄膜の作製と電池特性評価

神永健一, 鈴木貫太, 七澤太梧, 安井伸太郎, 丸山伸伍, 松本祐司

公益社団法人日本セラミックス協会第36回秋季シンポジウム　2023/09/06
化学ボロフェン無機液晶に向けた高結晶性KBH4エピタキシャル薄膜の作製

佐々木啓太, 神永健一, 丸山伸伍, 松本祐司

第70回応用物理学会春季学術講演会　2023/03/17
In situ 赤外MAIRS-蒸着複合装置を用いた二層膜からのGASnI3 生成過程の観察

島田一輝, 丸山伸伍, 宮寺哲彦, 神永健一, 松本祐司

2022/09/20
傾斜組成Ru置換(La,Sr)MnO3エピタキシャル薄膜の磁性

佐藤岳, 神永健一, 永沼博, 丸山伸伍, 松本祐司

第83回応用物理学会秋季学術講演会　2022/09/21
液晶性バッファ層がアモルファスルブレンの結晶化挙動に及ぼす影響

板垣拓歩, 佐藤優之介, 丸山伸伍, 神永健一, 松本祐司

第83回応用物理学会秋季学術講演会　2022/09/20
擬岩塩型NbNエピタキシャル薄膜の超伝導

長泰亨, 木村凛太郎, 神永健一, 丸山伸伍, 松本祐司

第83回応用物理学会秋季学術講演会　2022/09/22
擬岩塩型Nb3O3エピタキシャル薄膜の超伝導

木村凜太郎, 長泰亨, 神永健一, 丸山伸伍, 松本祐司

第83回応用物理学会秋季学術講演会　2022/09/22
イオン液体を介した真空蒸着法による有機イオン性柔粘性結晶の成長

松岡陽太, 丸山伸伍, 松本祐司, 神永健一

第83回応用物理学会秋季学術講演会　2022/09/20
A possible Mott insulator with high electron mobility: Rock-salt structured NbO epitaxial thin film

Rintaro Kimura, Kenichi Kaminaga, Shingo Maruyama, Yuji Matsumoto

THE 22ND INTERNATIONAL VACUUM CONGRESS IVC-22　2022/09/13
Magnetization singularity in the composition of substitutional Ir atoms in LSMO epitaxial films

Kenichi Kaminaga, Hiroshi Naganuma, Kanta Suzuki, Shingo Maruyama, Yuji Matsumoto

THE 22ND INTERNATIONAL VACUUM CONGRESS IVC-22　2022/09/13
Interfaces between Epitaxial Oxide Films and Ionic liquid Investigated by Vacuum Electrochemistry Approach

Yuji Matsumoto, Kenichi Kaminaga, Yoshihito Sano, Chika Takahashi, Mariko Kanai, Shingo Maruyama

THE 22ND INTERNATIONAL VACUUM CONGRESS IVC-22　2022/09/12
イオン液体を⽤いたEuO保護膜の真空電気化学評価

神永健一, 佐野義人, 丸山伸伍, 松本祐司

第69回応用物理学会春季学術講演会　2022/03/26
⾼温強磁性半導体GdOエピタキシャル薄膜の結晶性と物性の改善

深沢崇人, 岡大地, 神永健一, 齋藤大地, 清水宙一, 福村知昭

第69回応用物理学会春季学術講演会　2022/03/23
25%Ir置換LSMOエピタキシャル薄膜の特異な電気・磁気特性

神永健一, 鈴木貫太, 丸山伸伍, 松本祐司

第69回応用物理学会春季学術講演会　2022/03/23
⾼移動度Mott絶縁体の探索︓岩塩型NbOエピタキシャル薄膜

木村凜太郎, 神永健一, 丸山伸伍, 松本祐司

第69回応用物理学会春季学術講演会　2022/03/22
岩塩フラックスと炭酸水酸化物塩を介したZnO薄膜の新配向制御

黒田晃生, 神永健一, 丸山伸伍, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/22
傾斜組成 Ce ドープ LiCoO2エピタキシャル薄膜の作製

鈴木貫太, 神永健一, 丸山伸伍, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/22
PrOエピタキシャル薄膜における多様な磁性相の制御

清水宙一, 齋藤大地, 神永健一, 岡大地, 福村知昭

第82回応用物理学会秋季学術講演会　2021/09/10
In situ赤外分光-蒸着複合装置による有機-無機ハイブリッド材料の薄膜成長過程の観察

島田一輝, 丸山伸伍, 宮寺哲彦, 神永健一, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/11
トランジスタ応用を目指したイオン性液晶薄膜の作製

小松陽花, 丸山伸伍, 神永健一, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/13
液晶相からの温度勾配法による C8-BTBT 蒸着膜の結晶成長制御

辻田香奈瑛, 丸山伸伍, 神永健一, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/13
傾斜組成MgドープZnO薄膜の光触媒特性

佐藤湧太, 丸山伸伍, 神永健一, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/13
傾斜組成LiNixMnyCozO2薄膜作製に向けた LiNi0.67Mn0.33O2エピタキシャル薄膜の予備検討

鈴木貫太, 神永健一, 丸山伸伍, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/13
垂直磁気異方性をもつLSAT基板上のIrドープLSMOエピタキシャル薄膜

神永健一, 鈴木貫太, 丸山伸伍, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/13
真空蒸着8-QTP-8薄膜における液晶状態を経由した結晶成長に与えるアニール条件の影響

安倍大知, 丸山伸伍, 神永健一, 松本祐司

第82回応用物理学会秋季学術講演会　2021/09/13
新強磁性半導体：岩塩構造希土類単酸化物TbO

佐々木智視, 岡大地, 神永健一, 齋藤大地, 阿部展人, 清水宙一, 福村知昭

第68回応用物理学会春季学術講演会　2021/03/19
バッファ層の結晶-液晶相転移に誘起されたペンタセン薄膜の多形転移

丸山伸伍, 田中深雪, 小金澤智之, 神永健一, 松本祐司

第68回応用物理学会春季学術講演会　2021/03/16
イオン液体を利用した酸化タンタル膜の製膜

保月奈々, 神永健一, 丸山伸伍, 組頭広志, 高遠秀尚, 近藤道雄, 松本祐司

第68回応用物理学会春季学術講演会　2021/03/17
金属タンタルを電解溶出させたイオン液体を用いた酸化タンタルの製膜

保月奈々, 神永健一, 丸山伸伍, 組頭広志, 高遠秀尚, 近藤道雄, 松本祐司

令和2年度日本表面真空学会東北・北海道支部学術講演会　2021/03/04
Thickness Dependence of Magnetotransport Properties of Rocksalt NdO Epitaxial Thin Films

2021/02/24
Competing magnetic orders in PrO epitaxial thin films

The 25th symposium on the Physics and Applications of Spin-related Phenomena in Semiconductors　2020/11/18
Low temperature properties of Kondo lattice PrO epitaxial thin films

Hirokazu Shimizu, Nobuto Abe, Taku Yamamoto, Daichi Saito, Kenichi Kaminaga, Daichi Oka, Noriaki Kimura, Tomoteru Fukumura

The 81st JSAP Autumn Meeting 2020　2020/09/08

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We have synthesized PrO epitaxial thin films using the pulsed laser deposition method and evaluated the electrical and magnetic properties at the ultra-low temperatures where the Kondo effect becomes remarkable. PrO showed the Kondo effect below 6 K where the electrical resistivity becomes the minimum. At 10 K and above, the behaviors of magnetization and the anomalous Hall resistivity were corresponding with each other, but in the ultra-low temperatures, the anomalous Hall resistivity showed large residual components and coercive fields in contrast to the magnetization. This is considered to indicate the rearrangement of magnetization due to the competition of magnetic interactions.
Itinerant ferromagnetism in PrO epitaxial thin films

Hirokazu Shimizu, Nobuto Abe, Taku Yamamoto, Daichi Saito, Kenichi Kaminaga, Daichi Oka, Tomoteru Fukumura

The 67th JSAP Spring Meeting 2020　2020/03/13

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High quality PrO epitaxial thin films were synthesized for the first time using pulsed laser deposition, and their magnetic and electrical properties were evaluated. PrO exhibited ferromagnetic behavior in field cooling (FC) below 30 K, and the spontaneous magnetization at 2 K was estimated to be about 0.03 μB/f.u. On the other hand, electric conduction shows metallic behavior, and the anomalous Hall effect with hysteresis was observed below 20 K. PrO has a possibility to be an itinerant ferromagnet with near-zero spontaneous magnetization at the Curie temperature of about 30 K.
Thickness Dependence of Magnetotransport Properties in Rocksalt NdO Epitaxial Thin Films

Daichi Saito, Kenichi Kaminaga, Daichi Oka, Tomoteru Fukumura

The 67th JSAP Spring Meeting 2020　2020/03/13
Evaluation of spin parameters for LaO from spin Hall magnetoresistance

Kenichi Kaminaga, Daichi Oka, Hirofumi Oka, Tomoteru Fukumura

The 67th JSAP Spring Meeting 2020　2020/03/14

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In the previous meeting, we reported observation of spin Hall magnetoresistance (SMR) in a rock-salt type LaO/EuO heteroepitaxial thin film with clean and sharp interface using EuO, a ferromagnetic insulator with Curie temperature of 69 K, as the bottom layer. This is the first report on SMR in oxide heterostructure. Here, we report the spin parameters of LaO derived from the LaO layer thickness dependence of SMR in LaO/EuO.
Rock-salt type superconductor/ferromagnet heteroepitaxial junction: LaO/EuO International-presentation

Kenichi Kaminaga, Daichi Oka, Hirofumi Oka, Tomoteru Fukumura

APS March Meeting 2020　2020/03/05
Observation of high electron mobility with significant spin-orbit coupling in rock-salt YbO epitaxial thin film International-presentation

Taku Yamamoto, Kenichi Kaminaga, Daichi Saito, Daichi Oka, Tomoteru Fukumura

APS March Meeting 2020　2020/03/03
Magnetotransport of Epitaxial Thin Films and Heterojunction of Rocksalt NdO with Itinerant Ferromagnetism

Daichi Saito, Kenichi Kaminaga, Daichi Oka, Tomoteru Fukumura

The 24th Symposium on the Physics and Applications of Spin-related Phenomena in Semiconductors　2019/12/18
Spin Hall magnetoresistance in LaO/EuO heteroepitaxial junction

Kenichi Kaminaga, Daichi Oka, Hirofumi Oka, Tomoteru Fukumura

The 24th Symposium on the Physics and Applications of Spin-related Phenomena in Semiconductors　2019/12/18
Effect of Optical and Acoustic Phonons on Optical Properties of Yb2O3 and Lu2O3 Thin Films International-presentation

Takaho ASAI, Takayuki MAKINO, Kenichi KAMINAGA, Daichi OKA, Tomoteru FUKUMURA

Materials Research Meeting 2019　2019/12/11
New ferromagnetic semiconductor: rare-earth monoxide GdO International-presentation

Taku Yamamoto, Kenichi Kaminaga, Daichi Saito, Daichi Oka, Tomoteru Fukumura

17th RIEC International Workshop on Spintronics　2019/12/05
Heteroepitaxy of rock-salt superconductor/ferromagnet thin films: LaO/EuO International-presentation

Kenichi Kaminaga

26th International Workshop on Oxide Electronics　2019/10/02
希土類酸化物薄膜のフェムト秒時間分解分光

山出拓史, 山本卓, 岡大地, 神永健一, 福村知昭, 金井輝人, 石井順久, 板谷治郎, 牧野哲征

第80回応用物理学会秋季学術講演会　2019/09/19
新高温強磁性半導体：希土類単酸化物GdO

山本卓, 神永健一, 斎藤大地, 岡大地, 福村知昭

第80回応用物理学会秋季学術講演会　2019/09/18
希土類単酸化物CeOエピタキシャル薄膜のp型電気輸送特性

阿部展人, 山本卓, 齋藤大地, 神永健一, 岡大地, 福村知昭

第80回応用物理学会秋季学術講演会　2019/09/18
LaO/EuOヘテロエピタキシャル薄膜のスピンホール磁気抵抗

神永健一, 岡大地, 岡博文, 福村知昭

第80回応用物理学会秋季学術講演会　2019/09/18
岩塩型超伝導/強磁性ヘテロエピタキシャル薄膜：LaO/EuO

神永健一, 岡大地, 岡博文, 福村知昭

第66回応用物理学会春季学術講演会　2019/03/09
Electrically conducting rock-salt LuO epitaxial thin film International-presentation

Kenichi Kaminaga, Daichi Oka, Tetsuya Hasegawa, Tomoteru Fukumura

APS March Meeting 2019　2019/03/07
Carrier and epitaxial strain control of superconductivity in LaO thin film International-presentation

Kenichi Kaminaga, Daichi Oka, Tetsuya Hasegawa, Tomoteru Fukumura

APS March Meeting 2019　2019/03/05
Effects of lattice strain on superconductivity in LaO epitaxial thin films Invited

K. Kaminaga

2018/03
Superconductivity of LaO epitaxial thin film

○K. Kaminaga, D. Oka, T. Fukumura, T. Hasegawa

The 78th JSAP Fall Meeting　2017/09
Electrical and Magnetic Properties of Neodymium Monoxide Thin Film International-presentation

○D. Saito, K. Kaminaga, D. Oka, T. Hasegawa, T. Fukumura

International Conference on Solid State Devices and Materials　2017/09
Samarium monoxide epitaxial thin film as a heavy fermion compound International-presentation

Y. Uchida, ○K. Kaminaga, D. Oka, T. Fukumura, T. Hasegawa

Yamada Science Foundation Junjiro Kanamori Memorial International Symposium　2017/09
Discovery of superconductivity in Lanthanum monoxide International-presentation

○K. Kaminaga, D. Oka, T. Fukumura, T. Hasegawa

SCES (International Conference on Strongly Correlated Electron Systems)　2017/07
Possible heavy-fermionic nature of Samarium monoxide epitaxial thin film International-presentation

Y. Uchida, ○K. Kaminaga, T. Fukumura, T. Hasegawa

SCES (International Conference on Strongly Correlated Electron Systems)　2017/07
A divalent rare earth oxide semiconductor: Yttrium monoxide International-presentation

○K. Kaminaga, R. Sei, K. Hayashi, N. Happo, H. Tajiri, D. Oka, T. Fukumura, T. Hasegawa

APS March Meeting　2017/03
Epitaxial growth of yttrium monoxide thin film International-presentation

○K. Kaminaga, R. Sei, K. Hayashi, N. Happo, H. Tajiri, D. Oka, T. Fukumura, T. Hasegawa

International Conference on Solid State Devices and Materials　2015/09

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Research Projects 20

Ir置換ペロブスカイト型マンガン酸化物薄膜における特異な超伝導的挙動の解明

神永健一

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

2024/04/01 - 2027/03/31
強スピン軌道相互作用を有する磁性酸化物薄膜を基盤とするグラデーションスピントロニクスの創製 Competitive

Offer Organization: 公益財団法人マツダ財団

System: 第40回（2024年度）マツダ研究助成

2024/11 - 2027/03

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本研究では室温強磁性体である重元素ドープペロブスカイト型マンガン酸化物薄膜をベースに、研究代表者考案の、スピントロニクス分野と傾斜組成薄膜の融合研究である“グラデーションスピントロニクス”という新分野創製を目的とする。研究代表者所属の研究室が独自開発した世界唯一のガルバノミラー走査型パルスレーザ堆積装置でナノ傾斜組成エピタキシャル薄膜を作製し、SQUID測定・偏極中性子反射率測定・強磁性共鳴測定を組合わせることで傾斜組成構造が磁気・スピン特性に及ぼす影響を明らかにする。
Development of next-generation high performance rare metal-free transparent conductive films by designing graded compositions of Nb doped titanium dioxide Competitive

2025/07 - 2026/06
革新的エピタキシーと先端量子プローブ解析を活用したグラデーション正極材における電池性能向上メカニズムの探究 Competitive

Offer Organization: 公益財団法人天野工業技術研究所

System: 2025年度（前期）研究助成金

2025/04 - 2026/03
革新的エピタキシーと量子プローブ解析を駆使したグラデーション正極材の電池性能向上メカニズムの探究 Competitive

Offer Organization: 公益財団法人藤森科学技術振興財団

System: 2025年度研究助成

2025/04 - 2026/03
ナノグラデーションスピントロニクスの開拓 Competitive

Offer Organization: 公益財団法人豊田理化学研究所

System: 2025年度豊田理研スカラー

2025/04 - 2026/03
高効率スピン制御を実現する完全エピタキシャル酸化物超伝導デバイスの開発 Competitive

Offer Organization: 公益財団法人エプソン国際奨学財団

System: 2025年度研究助成

2025/04 - 2026/03
自立膜アプローチを介した岩塩型モット絶縁体の超伝導転移手法の開拓 Competitive

Offer Organization: 公益財団法人大倉和親記念財団

System: 2024年度（第55回）学術研究助成

2024/12 - 2026/03
自立膜アプローチを介した岩塩型モット絶縁体の超伝導転移手法の開拓 Competitive

Offer Organization: 一般財団法人イオン工学振興財団

System: 2024年度研究助成

2024/10 - 2026/03
強スピン軌道相互作用を有する磁性酸化物薄膜を基盤とするグラデーションスピントロニクスの開拓 Competitive

Offer Organization: 公益財団法人カシオ科学振興財団

System: 第42回（令和6年度）研究助成

2024/12 - 2025/12
NbOの岩塩型新奇相薄膜の超伝導

Offer Organization: 公益財団法人徳山科学技術振興財団

System: 2024年度国際交流助成

2025/03 -
水素化ホウ素セシウム薄膜を母物質とした高量子効率なペロブスカイト型発光素子の開発 Competitive

Offer Organization: 第一稀元素化学工業株式会社

System: 2024年度研究助成

2024/07 - 2025/02
Site-Selective Substitution Strategy in Lithium-Ion Battery Cathode Epitaxial Thin Film Platform via Introduction of Compositionally-Graded Structure

Offer Organization: 公益財団法人村田学術振興・教育財団

System: 2024年度海外派遣援助

2024/09 - 2024/10
Creation of gradient spintronics based on oxide thin films with strong spin-orbit interaction

Kenichi Kaminaga

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Early-Career Scientists

Institution: Tohoku University

2022/04/01 - 2024/03/31
Creation of all-epitaxial oxide superconducting spin valve using new rare earth monoxide Competitive

Kaminaga Kenichi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Early-Career Scientists

Institution: Tohoku University

2019/04/01 - 2022/03/31

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A superconducting spin valve (SSV) device, in which a superconductor is sandwiched between two ferromagnetic insulators in the upper and lower layers, is a post-Moore technology that performs zero-resistance switching by controlling the parallel and antiparallel spin states of the ferromagnetic layers. In this study, we aimed to fabricate EuO/LaO/EuO SSV devices with coherent and steep junction interfaces with aligned crystallographic orientation by epitaxy technique to combine the ferromagnetic insulator EuO, a rare earth single oxide with the same rock salt structure as the new superconductor LaO, which was discovered by the principal investigator in 2018. Although the SSV devices could not be completed due to the transfer during the research period and the long interruption of experiments due to the Corona disaster, we discovered an electrochemical insitu characterization method for the semiconductor properties of EuO thin films in the course of the research.
2020年度若手研究者海外派遣プログラム Competitive

神永健一

Offer Organization: 東北大学材料科学高等研究所

System: 若手研究者海外派遣プログラム

2020/03 -
Fabrication and evaluation of Spin Seebeck effect devices with novel Rare Earth monoxides Competitive

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for JSPS Fellows

2017/04/26 - 2019/03/31
2019年度若手研究者海外派遣プログラム Competitive

神永健一

Offer Organization: 東北大学材料科学高等研究所

System: 2019年度若手研究者海外派遣プログラム

2019/03 -
公益財団法人村田学術振興財団海外派遣援助 Competitive

神永健一

Offer Organization: 公益財団法人村田学術振興財団

System: 海外派遣援助

Category: Possible heavy-fermionic nature of Samarium monoxide epitaxial thin film

2017/07 -
国際会議論文発表者助成事業 Competitive

神永健一

Offer Organization: 公益財団法人 NEC C&C財団

System: 国際会議論文発表者助成事業

2017/03 -

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