Papers - HAYASHI Koichi
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Application of x-ray fluorescence holography to a single grain in polycrystalline ferroelectric ceramics Reviewed International coauthorship
Ahmed Gadelmawla, Yuta Yamamoto, Koji Kimura, Halubai Sekhar, Naohisa Happo, Kyle G. Webber, Tomohiro Matsushita, Hiroo Tajiri, Koichi Hayash
Review of Scientific Instruments 96 035107 2025.03
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
DOI： 10.1063/5.0242691
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Three-dimensional Atomic Configurations in a ZnFe2O4 Single Crystal by X-ray Fluorescence Holography Reviewed
Shinya Hosokawa, Naohisa Happo, Koichi Hayashi, Tomohiro Matsushita
e-Journal of Surface Science and Nanotechnology 23 ( 1 ) 77 - 82 2025.02
Language：English Publishing type：Research paper (international conference proceedings)
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Diffractometer for element-specific analysis on local structures using a combination of X-ray fluorescence holography and anomalous X-ray scattering Reviewed International coauthorship
Hiroo Tajiri, Shinji Kohara, Koji Kimura, Sekhar Halubai, Haruto Morimoto, Naohisa Happo, Jens R. Stellhorn, Yohei Onodera, Xvsheng Qiao, Daisuke Urushihara, Peidong Hu, Toru Wakihara, Toyohiko Kinoshita, Koichi Hayashi
Journal of Synchrotron Radiation 32 ( 1 ) 125 - 132 2024.12
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Relationship between network topology and negative electrode properties in Wadsley–Roth phase TiNb2O7 Reviewed
Naoto Kitamura, Hikari Matsubara, Koji Kimura, Ippei Obayashi, Yohei Onodera, Ken Nakashima, Hidetoshi Morita, Motoki Shiga, Yasuhiro Harada, Chiaki Ishibashi, Yasushi Idemoto, Koichi Hayashi
NPG Asia Materials 16 62 2024.12
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Unravelling the density-driven modification of the topology generated by the interconnection of SiO4 tetrahedra in silica polymorphs Reviewed
Shinji Kohara, Shuya Sato, Motoki Shiga, Yohei Onodera, Hirokazu Masai, Toru Wakihara, Atsunobu Masuno, Akihiko Hirata, Naoto Kitamura, Yasushi Idemoto, Koji Kimura, Koichi Hayashi
Journal of the Ceramic Society of Japan 132 ( 12 ) 653 - 662 2024.12
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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In Situ Observation at the Zinc-Anode/KOH Electrolyte Interface by Grazing Incident X-ray Diffraction Reviewed
Takahiro Yoshikawa, Hiroaki Watanabe, Yasuhiro Takabayashi, Koji Kimura, Tatsuya Yokota, Hisashi Sato, So Fujinami, Koichi Hayashi
Journal of Electronic Materials 54 1131 - 1140 2024.11
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Ca-induced phonon softening in BaTiO3 revealed by inelastic x-ray and neutron scattering Reviewed International coauthorship
K. Kimura, S. Tsutsui, Y. Yamamoto, A. Nakano, K. Kawamura, R. Kajimoto, K. Kamazawa, A. Martin, K. G. Webber, K. Kakimoto & K. Hayashi
Physical Review B 110 134314 2024.10
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Thermal insulation enhanced by the dopant-induced phonon softening discovered in thermoelectric Heusler compounds Reviewed
Koji Kimura, Satoshi Tsutsui, Hidetoshi Miyazaki, Shuma Nakagami, Yoichi Nishino, Koichi Hayashi
Acta Materialia 281 120439 2024.09
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Effect of A-site non-stoichiometry in NaNbO3 ceramics Reviewed International coauthorship
Ali Hussain, Ahmed Gadelmawla, Juliana G. Maier, Gina E. Eyoum, Hidetoshi Miyazaki, Koji Kimura, Koichi Hayashi, Kyle G. Webber
Scripta Materialia 255 116384 2024.09
Language：English Publishing type：Research paper (scientific journal)
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Atomic Imaging of BaTiO3 by Multiple-Wavelength Neutron Holography Reviewed
Kota Yamakawa, Hajime Nakada1, Koji Kimura, Kenichi Oikawa, Masahide Harada, Yasuhiro Inamura, Kenji Ohoyama, Koichi Hayashi
Journal of the Physical Society of Japan 93 104601 2024.09
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Intermediate multidomain state in single-crystalline Mn-doped BiFeO3 thin films during ferroelectric polarization switching Reviewed
Seiji Nakashima, Koji Kimura, Naohisa Happo, Artoni Kevin R. Ang, Yuta Yamamoto, Halubai Sekhar, Ai I. Osaka, Koichi Hayashi, Hironori Fujisawa
Scientific Reports 14 14358 2024.06
Language：English Publishing type：Research paper (scientific journal)
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In-situ Study of Solid-Liquid Interface Structure of Zinc-anode Battery by X-ray Total Reflection
Yasuhiro Takabayashi, Takahiro Yoshikawa, Kairi Fujii, Keisuke Kibino, Koji Kimura, So Fujinami, Koichi Hayashi
e-Journal of Surface Science and Nanotechnology 22 261 - 265 2024.05
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Superstructure of Fe5−xGeTe2 Determined by Te K-Edge Extended X-ray Absorption Fine Structure and Te Kα X-ray Fluorescence Holography Reviewed
Ritsuko Eguchi, Halubai Sekhar, Koji Kimura, Hirokazu Masai, Naohisa Happo, Mitsuki Ikeda, Yuki Yamamoto, Masaki Utsumi, Hidenori Goto, Yasuhiro Takabayashi, Hiroo Tajiri, Koichi Hayashi, Yoshihiro Kubozono
ACS Omega 9 ( 19 ) 21287 - 21297 2024.05
Language：English Publishing type：Research paper (scientific journal)
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Nanophase separation in K1-xCaxC8 revealed by X-ray fluorescence holography and extended X-ray absorption fine structure Reviewed
Naohisa Happo, Atsushi Kubota, Xiaofan Yang, Ritsuko Eguchi, Hidenori Goto, Mitsuki Ikeda, Koji Kimura, Yasuhiro Takabayashi, Jens R. Stellhorn, Shinjiro Hayakawa, Koichi Hayashi, Yoshihiro Kubozono
Chemistry of Materials 36 ( 9 ) 4135 - 4143 2024.04
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Development of instruments for imaging of local magnetic structure by magnetic neutron holography Reviewed
Tomoya Kanno, Kenji Ohoyama, Hajime Nakada, Yuto Fukui, Kota Yamakawa, Shota Hoshi, Motoki Takano, Yodai Kobayashi, Yuka Tomimatsu, Shingo Takahashi, Takayuki Oku, Takuya Okudaira, Ryuju Kobayashi, Shusuke Takada, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, Toetsu Shishido, Keisuke Sato, Koichi Hayashi
Nuclear Instruments and Methods in Physics Research A 1064 169349 2024.04
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Operando combined SAXS/XRD/XAFS measurements of lithium conversion battery Reviewed
Yasuhiro Takabayashi, Koji Kimura, Takeshi Miyazaki, Kazuki Yoshii, Hikari Sakaebe, Masahiro Shikano, Nobuhiko Takeichi, Tomotaka Nakatani, So Fujinami, Hisao Kiuchi, Misaki Katayama, Tatsumi Hirano, Koichi Hayashi
Advanced Sustainable Systems 8 2300571 2024.03
Authorship：Last author Language：English Publishing type：Research paper (scientific journal)
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Pressure dependence of the structural and superconducting properties of the Bi-based superconductor Bi2Pd3Se2 Reviewed International coauthorship
Zhiyan Zhang, Mitsuki Ikeda, Masaki Utsumi, Yuki Yamamoto, Hidenori Goto, Ritsuko Eguchi, Yen-Fa Liao, Hirofumi Ishii, Yasuhiro Takabayashi, Koichi Hayashi, Ryusuke Kondo, Tatsuo Kobayashi, Yoshihiro Kubozono
Inorganic Chemistry 63 ( 5 ) 2553 - 2561 2024.01
Language：English Publishing type：Research paper (scientific journal)
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Observation of the superstructure in Fe5-xGeTe2 by X-ray fluorescence holography Reviewed
Ritsuko Eguchi, Mitsuki Ikeda, Yuki Yamamoto, Hidenori Goto, Naohisa Happo, Koji Kimura, Koichi Hayashi, and Yoshihiro Kubozono
Inorganic Chemistry 63 ( 2 ) 947 - 963 2023.12
Language：English Publishing type：Research paper (scientific journal)
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Investigation of ferroelectric Ba1−xCaxZryTi1−yO3 single crystal by in situ temperature-dependent x-ray diffraction and first-principles calculations Reviewed International coauthorship
Ahmed Gadelmawla, Samuele Spreafico, Frank W. Heinemann, Daisuke Urushihara, Donglin Liu, Qiang Li, Qingfeng Yan, Davide Ceresoli, Koji Kimura, Kouichi Hayashi, Bernd Meyer and Kyle G. Webber
Journal of Applied Physics 134 144104 2023.10
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.1063/5.0167348
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Atomic and Electronic Structures on a Mordenite Zeolite Reviewed
Shinya Hosokawa , Hitoshi Sato, Yasuhisa Tezuka, Jun-ichi Adachi, Koji Kimura, Koichi Hayashi, Shinji Kohara, Hiroo Tajiri, Kentaro Kobayashi, Akihide Koura, Fuyuki Shimojo
e-Journal of Surface Science and Nanotechnology 22 ( 1 ) 25 - 31 2023.09
Language：English Publishing type：Research paper (scientific journal)
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