Research theme for competitive and other funds (8):
2022 - 2025 逆・磁気線二色性効果を利用した反強磁性デバイスの高度な光制御
2021 - 2025 Development of coercive force theory by eXtended Landau Free Energy (XLFE)
2017 - 2020 Elucidation of AC-spin-current dynamics by time-resolved X-FMR imaging
2012 - 2018 極限レーザーと先端放射光技術の融合による軟X線物性科学の創成
2014 - 2016 Advanced control of gigantic spin waves induced in ferrimagnetic thin films
2014 - 2015 軟X線分光のための真空着脱式マイクロ波導入機構の構築
2006 - 2010 Observation of ultra-fast magnetic response by a time-resolved photoemission electron microscope
2007 - 2008 Fluorescence Yield XMCD Study for Metamagnetic Transition in Uranium Compounds
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Papers (109):
Takuo Ohkochi, Ryunosuke Takahashi, Hidenori Fujiwara, Hirokazu Takahashi, Roman Adam, Umut Parlak, Kohei Yamamoto, Hitoshi Osawa, Masato Kotsugi, Arata Tsukamoto, et al. Investigation of deterministic and cumulative nature in helicity-dependent optical switching of ferrimagnetic Gd-Fe-Co films. Journal of Magnetism and Magnetic Materials. 2024. 171854-171854
Takuo Ohkochi, Akihiro Yoshida, Akira Yasui, Yu Maeda, Hiroaki Nishimoto, Keisuke Nogawa, Taku Konishi, Nobuyoshi Hosoito. Visualization of the Exchange Bias Effect in an FeMn/Co Heterostructure via Photoemission Electron Microscopy. 2023. 21. 331
A. Yamaguchi, S. Ikeda, M. Nakaya, Y. Kobayashi, Y. Haruyama, S. Suzuki, K. Kanda, Y. Utsumi, T. Ohkochi, H. Sumida, et al. Soft X-ray microspectroscopic imaging studies of exfoliated surface between fluoropolymer and Cu plate directly bonded by plasma irradiation with ammonia gas. Journal of Electron Spectroscopy and Related Phenomena. 2023. 267. 147385-147385
T. Ohkochi, M. Tanaka, T. Ohtsuki, Z. Horita, F. Kitajima, A. Yamaguchi, M. Kotsugi, H. Ogawa, M. Oura. Present status and recent progress of research, using photoemission-electron microscopy at SPring-8. Journal of Electron Spectroscopy and Related Phenomena. 2023. 267
Takahiro Moriyama, Luis Sánchez-Tejerina, Kent Oda, Takuo Ohkochi, Motoi Kimata, Yoichi Shiota, Hiroyuki Nojiri, Giovanni Finocchio, Teruo Ono. Micromagnetic understanding of evolutions of antiferromagnetic domains in NiO. Physical Review Materials. 2023. 7. 5
工藤佳生, 堀尾眞史, 鷲見寿秀, 和田哲弥, 木下豊彦, 大河内拓雄, 松田巌. A novel measurement approach for X-ray Magnetic Linear Dichroism: 2nπ angular rotation of linear polarization. 日本物理学会講演概要集(CD-ROM). 2021. 76. 2
伊藤達也, 中嶋誠二, 藤沢浩訓, 大河内拓雄. Energy band modulation at the graphene/BiFeO3 interface by ferroelectric spontaneous polarization. 応用物理学会秋季学術講演会講演予稿集(CD-ROM). 2021. 82nd
鈴木哲, 春山雄一, 山口明啓, 山本知樹, 義積拓野, 藤井綾香, 中嶋誠二, 淵脇八雲, 藤澤浩訓, 大河内拓雄, et al. Electron spectroscopic analyses of bulk insulatimg materials using graphene. X線分析討論会講演要旨集. 2020. 56th (CD-ROM)
THE JAPAN SOCIETY OF APPLIED PHYSICS
, SPring-8ユーザー協同体
, THE JAPANESE SOCIETY FOR SYNCHROTRON RADIATION RESEARCH
, THE PHYSICAL SOCIETY OF JAPAN
, 日本表面真空学会