Ishimatsu Naoki

イシマツナオキ | Ishimatsu Naoki

Affiliation and department：
Job title： Professor

Research field (1)： Structural and functional materials

Research keywords (3)： synchrotron radiation , X-ray absorption spectroscopy , high pressure

Research theme for competitive and other funds (11)：

2021 - 2024 中距離スケールの原子位置の可視化によるFe合金の大きな磁気体積効果の起源解明
2020 - 2024 圧力磁場誘起らせん秩序の観測によるキラリティ自発形成機構の研究
2021 - 2023 Fe-Fe原子相関を超秩序構造とした不規則鉄合金の構造可視化
2017 - 2019 原子間の結合に着目したX線吸収分光法による鉄合金の熱膨張抑制機構の解明
2016 - 2017 遷移金属水素物の電子状態に着目した水素吸蔵特性の解明(国際共同研究強化)

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Papers (117)：

Fuminori Honda, Shintaro Kobayashi, Naomi Kawamura, Saori I. Kawaguchi, Takatsugu Koizumi, Yoshiki J. Sato, Yoshiya Homma, Naoki Ishimatsu, Jun Gouchi, Yoshiya Uwatoko, et al. Pressure-induced Structural Phase Transition and New Superconducting Phase in UTe₂. Journal of the Physical Society of Japan. 2023. 92. 4
S. Sawada, K. Okai, H. Fukui, R. Takahashi, N. Ishimatsu, H. Maruyama, N. Kawamura, S. Kawaguchi, N. Hirao, T. Seki, et al. Lattice constants and magnetism of L10-ordered FePt under high pressure. Applied Physics Letters. 2023
Naoki Ishimatsu, Kentaro Ishimoto, Kouji Sakaki, Yumiko Nakamura, Naomi Kawamura, Saori I. Kawaguchi, Naohisa Hirao, Satoshi Nakano. Ferrimagnetic coupling between cobalt and light rare-earth samarium induced by dense hydrogenation of SmCo5 permanent magnet under high pressures. Physical Review Materials. 2023
Kubo, Yusuke, Ishimatsu, Naoki, Kitamura, Naoto, Kawamura, Naomi, Kakizawa, Sho, Mizumaki, Masaichiro, Nomura, Ryuichi, Irifune, Tetsuo, Sumiya, Hitoshi. Visualization of the disordered structure of Fe-Ni Invar alloys by reverse monte carlo calculations. FRONTIERS IN MATERIALS. 2022. 9
Resta A. Susilo, Wen Deng, Jiajia Feng, Aifeng Wang, Naomi Kawamura, Naoki Ishimatsu, Saori Kawaguchi, Mingzhi Yuan, He Li, Weijun Ren, et al. Impacts of pressure to the structural, electronic and magnetic properties of Dirac semimetal EuMnBi2. PHYSICAL REVIEW RESEARCH. 2021. 3. 4

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MISC (100)：

河村直己, 広瀬雄介, 本多史憲, 下笠諒平, 石松直樹, 水牧仁一朗, 河口沙織, 平尾直久, 三村功次郎. UPd₂Cd₂₀におけるウラン価数とウラン原子間距離の圧力効果. 日本物理学会講演概要集(CD-ROM). 2019. 74. 2
Akihiro Mitsuda, Shigeki Manabe, Masafumi Umeda, Hirofumi Wada, Kazuyuki Matsubayashi, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Masaichiro Mizumaki, Naomi Kawamura, Kiyofumi Nitta, et al. Emergence of a new valence-ordered structure and collapse of the magnetic order under high pressure in EuPtP. Journal of Physics Condensed Matter. 2018. 30. 10. 105603-105603
宮下大樹, 石松直樹, 甲佐美宇, 金森奨, 熊谷学人, 迫田夜空, 河口沙織. XRD測定と微分干渉顕微鏡観察によるε-Feバリアント組織の解析. 高圧討論会講演要旨集. 2018. 59th
N.Emi, T.Koyama, K.Nishiyama, K.Ueda, T.Mito, M.Mizumaki, N.Kawamura, N.Ishimatsu, K.Kitagawa, T.Kagayama, et al. 21aAL-1 Electronic structure in high pressure state of Kondo insulator SmB_6 studied by X-ray absorption spectroscopy and NMR measurements. Meeting Abstracts of the Physical Society of Japan. 2016. 71. 2155-2155
石松直樹, 圓山裕, 河村直己, 水牧仁一朗, 中野智志, 三井隆也, 中村優美子, 榊浩司, 榎浩利. XMCD Study of Magnetic States in Laves Phase RFe₂ (R=Y, Gd) Hydrides under High Pressure. SPring-8/SACLA利用研究成果集(Web). 2016. 4. 1

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Education (3)：

1996 - 1999 Tokyo Institute of Technology
1994 - 1996 Toyama University
1990 - 1994 Toyama University

Professional career (2)：

Doctor of Science (Tokyo Institute of Technology)
Master of Science (Toyama University)

Work history (2)：

2007/04/01 - 2020/03/31 Hiroshima University Graduate School of Science Assistant Professor
2001/10/01 - 2007/03/31 Hiroshima University Graduate School of Science Research Associate

Committee career (9)：

2016/04 - 2017/03 (財)高輝度光科学研究センター外来研究員
2016/04 - 2016/09 岡山理科大学非常勤講師
2015/04 - 2016/03 (財)高輝度光科学研究センター外来研究員
2015/10 - 2016/01 広島県立祇園北高等学校非常勤講師
2014/04 - 2015/03 (財)高輝度光科学研究センター外来研究員

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Association Membership(s) (4)：

The Iron and Steel Institute of Japan , The Japan Society of High Pressure Science and Technology , The Physical Society of Japan(JPS) , The Japanese Society for Synchrotron Radiation Research

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