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J-GLOBAL ID:201601010605303373   Update date: Apr. 16, 2025

Ohta Kenji

オオタ ケンジ | Ohta Kenji
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Affiliation and department:
Job title: Associate Professor
Homepage URL  (2): https://sites.google.com/view/kenji-ohtahttp://kenjiohta-uhpr.sakura.ne.jp/Kenji_Ohtas_homepage/Welcome.html
Research field  (1): Solid earth science
Research keywords  (8): Sound velocity ,  Thermal conductivity ,  Electrical conductivity ,  High pressure and temperature experiment ,  Core-Mantle Boundary ,  Core ,  Mantle ,  Earth's Deep Interior
Research theme for competitive and other funds  (14):
  • 2024 - 2028 Solid State Ionics under extreme conditions of Earth's deep interior
  • 2024 - 2028 回転式DACによる超高圧高温変形実験から明らかにする深部スラブの変形特性
  • 2023 - 2027 Verification of superionic state of the subducting oceanic plate by high-pressure experiments, theoretical calculations, and electromagnetic sounding analysis
  • 2021 - 2026 Light elements in the Earth's core revealed by ultrahigh-pressure experiments
  • 2019 - 2023 超高温・高圧条件における地球深部物質の体積熱容量計測技術の開発
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Papers (58):
  • Kenji Ohta, Hayato Inoue, Sho Suehiro, Kei Hirose, Saori Kawaguchi-Imada, Haruhiko Dekura. Electrical and thermal conductivities of Fe-Ni-Si alloy under core conditions: A reevaluation. Physics of the Earth and Planetary Interiors. 2025. 363. 107351-107351
  • Kenta Iwamatsu, Yoshiyuki Okuda, Saori Kawaguchi-Imada, Kenji Ohta. Observation of hot dense H2O phases through non-time-resolved and time-resolved x-ray diffraction measurements in a laser-heated diamond anvil cell. Physical Review B. 2024
  • Akira Hasegawa, Kenji Ohta, Takashi Yagi, Kei Hirose, Yuichiro Yamashita. Inversion of the temperature dependence of thermal conductivity of hcp iron under high pressure. Scientific Reports. 2024. 14. 1
  • Yohan Park, Tatsuya Wakamatsu, Shintaro Azuma, Yu Nishihara, Kenji Ohta. Characterization of the lattice preferred orientation of hcp iron transformed from the single-crystal bcc phase in situ at high pressures up to 80 GPa. Physics and Chemistry of Minerals. 2024. 51. 3
  • Yoshiyuki Okuda, Kei Hirose, Kenji Ohta, Saori Kawaguchi-Imada, Kenta Oka. Electrical Conductivity of Dense MgSiO3 Melt Under Static Compression. Geophysical Research Letters. 2024
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MISC (26):
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Lectures and oral presentations  (13):
  • Inversion of the temperature dependence of thermal conductivity of hcp iron under high pressure
    (The Joint 28th AIRAPT and 60th EHPRG International Conference 2023 2023)
  • Measuring the electrical resistivity of liquid iron at the pressures of planetary cores
    (Study of Earth's Deep Interior (SEDI) 2022@Zurich 2022)
  • Measurements of high pressure-temperature thermal conductivity of the Earth's lower mantle minerals in a laser-heated diamond anvil cell
    (JpGU 2019 2019)
  • Experimental determination of the thermal and electrical conductivity of iron at Earth’s core conditions
    (High Pressure Research at Gordon Research Conference 2018 2018)
  • Experimentally inferred thermal conductivity of planetary cores
    (Japan Geoscience Union Meeting 2018 2018)
more...
Education (2):
  • 2006 - 2010 Tokyo Institute of Technology Graduate School of Science and Technology Department of Earth and Planetary Sciences
  • 2002 - 2006 Tokyo Institute of Technology School of Science Department of Earth and Planetary Sciences
Professional career (1):
  • PhD (Tokyo Institute of Technology)
Work history (6):
  • 2024/10 - 現在 Institute of Science Tokyo Department of Earth and Planetary Sciences, School of Science Associate professor
  • 2017/07 - 2024/09 Tokyo Insititute of Technology School of Science, Department of Earth and Planetary Sciences Associate professor
  • 2013/11 - 2017/06 Tokyo Insititute of Technology School of Science, Department of Earth and Planetary Sciences Lecturer
  • 2011/04 - 2013/10 Osaka University Center for Quantum Science and Technology under Extreme Conditions JSPS researcher (SPD)
  • 2010/10 - 2011/03 Tokyo Insititute of Technology Department of Earth and Planetary Sciences, Graduate school of Science and Technology JSPS researcher (PD)
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Committee career (5):
  • 2017/11 - 現在 Frontiers in Science Review Editor of Solid Earth Geophysics
  • 2020/04 - 2024/03 SPring-8ユーザー協同体(SPRUC)地球惑星科学会 会長
  • 2017/04 - 2020/09 日本高圧力学会 高圧力学会誌編集委員
  • 2017/01 - 2020/06 Nature Publishing Group Scientific Reports Editorial Board Member
  • 2018/04 - 2020/03 SPring-8ユーザー協同体(SPRUC)地球惑星科学会 副会長
Awards (7):
  • 2019/11 - School of Science, Tokyo Institute of Technology Education Award for young faculty at School of Science
  • 2018/07 - AIRAPT Alvin Van Valkenburg Award
  • 2015/11 - 日本高圧力学会 日本高圧力学会奨励賞
  • 2014/08 - International Union of Geodesy and Geophysics (IUGG) The Doornbos Memorial Prize
  • 2014/08 - Tokyo Institute of Technology Award for challenging research
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Association Membership(s) (2):
JAPAN GEOSCIENCE UNION ,  THE JAPAN SOCIETY OF HIGH PRESSURE SCIENCE AND TECHNOLOGY
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