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J-GLOBAL ID:201801014230378192   Update date: Aug. 23, 2023

Hirao Naohisa

ヒラオ ナオヒサ | Hirao Naohisa
Research field  (1): Solid earth science
Research theme for competitive and other funds  (13):
  • 2019 - 2022 巨大歪み下におけるマントル鉱物構造相転移の新描像
  • 2019 - 2022 高温高圧実験に基づく地球核中の水素挙動解明
  • 2015 - 2020 Creation of the best model of the Earth's core
  • 2016 - 2019 Synchrotron Mossbauer small-angle scattering using a variable bandwidth nuclear spectrometer
  • 2016 - 2019 Radial XRD methods with stress-strain analysis opening new horizons for high-pressure experiments
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Papers (215):
  • 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. 122. 15. 152406-152406
  • 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
  • Ryo Masuda, Naohisa Hirao, Kosuke Fujiwara, Takaya Mitsui, Taku Fujihara, Hiroyuki Yamashita, Hiroyuki Tajima, Masayuki Kurokuzu, Shinji Kitao, Makoto Seto. Energy domain synchrotron-radiation-based Mössbauer spectroscopy of EuH2 under a few GPa pressure. Hyperfine Interactions. 2023
  • Takamitsu Yamanaka, Naohisa Hirao, Yuki Nakamoto, Takashi Mikouchi, Takanori Hattori, Kazuki Komatsu, Ho-kwang Mao. Magnetic and structure transition of Mn3-xFexO4 solid solutions under high-pressure and high-temperature conditions. Physics and Chemistry of Minerals. 2022. 49. 10
  • Masayuki Fukuda, Hidenobu Murata, Takumi Nishikubo, Qiumin Liu, Koomok Lee, Takehiro Koike, Yuma Takahashi, Saori I. Kawaguchi, Naohisa Hirao, Hiroshi Funakubo, et al. Suppression of Pressure-Induced Phase Transitions in a Monoclinically Distorted LiNbO3-Type CuNbO3 by Preference for a CuO3 Triangular Coordination Environment. Inorganic Chemistry. 2022. 61. 32. 12719-12725
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MISC (192):
  • 岡井啓輔, 三浦紘大, 安部弘隆, 高橋龍之介, 河口沙織, 平尾直久, 関剛斎, 高梨弘毅, 大村訓史, 福井宏之, et al. L10型FePtの高圧下X線回折による結晶構造観測. 日本放射光学会年会・放射光科学合同シンポジウム(Web). 2021. 34th
  • 永澤延元, 池田修悟, 河口沙織, 平尾直久, 大石泰生, ALONSO J. A., MARTINEZ-LOPE M. J., ABD-ELMEGUID M. M., 小林寿夫. Pressure-induced metal-insulator transition and crystal structure of RNiO3 (R: rare-earth). 日本物理学会講演概要集(CD-ROM). 2021. 76. 1
  • 中本有紀, 坂田雅文, 清水克哉, 平尾直久. The Structural Phase Transitions of Br under High Pressure. SPring-8/SACLA利用研究成果集(Web). 2021. 9. 1
  • 中本有紀, 坂田雅文, 清水克哉, 平尾直久. Crystal Structure and Superconductivity in Alkaline Earth Metal, Strontium, under High Pressure and Low Temperature. SPring-8/SACLA利用研究成果集(Web). 2021. 9. 1
  • 岡井啓輔, 三浦紘大, 安部弘隆, 高橋龍之介, 河口沙織, 平尾直久, 関剛斎, 高梨弘毅, 大村訓史, 福井宏之, et al. Observation of crystal structures of L10 type FePt by X-ray diffraction under high pressure. 日本物理学会講演概要集(CD-ROM). 2020. 75. 2
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Education (1):
  • 2001 - 2004 Tohoku University Graduate School of Science Department of Earth Science
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