Rchr
J-GLOBAL ID:202001008684256413   Update date: Mar. 19, 2024

Ohira Itaru

オオヒラ イタル | Ohira Itaru
Affiliation and department:
Job title: Assistant Professor
Research field  (2): Solid earth science ,  Inorganic materials
Research keywords  (5): Ultrahigh-pressure Earth Science ,  High-pressure and high-temperature experiment ,  Hydrous mineral ,  Glass ,  Synchrotron X-ray
Research theme for competitive and other funds  (7):
  • 2023 - 2028 Comprehensive study of anomalous behaviors of viscosity, elasticity, and density of silicate magmas under pressure
  • 2023 - 2026 無容器ガラス合成法と放射光X線実験から探るアルミノケイ酸塩ガラスの高圧構造変化
  • 2020 - 2023 高温高圧下中性子実験による惑星内部の超イオン伝導状態の解明
  • 2019 - 2023 Studies of magmas under pressure by using high-pressure X-ray tomography
  • 2020 - 2022 High pressure and high temperature in situ measurements of physical properties of silicate glasses toward understanding the physical properties of magmas in the deep Earth
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Papers (14):
  • Nozomi M. Kondo, Yoshio Kono, Itaru Ohira, Rostislav Hrubiak, Koji Ohara, Kiyofumi Nitta, Oki Sekizawa. Different structural behavior of MgSiO3 and CaSiO3 glasses at high pressures. American Mineralogist. 2023
  • Benjamin Strozewski, Johannes Buchen, Wolfgang Sturhahn, Takayuki Ishii, Itaru Ohira, Stella Chariton, Barbara Lavina, Jiyong Zhao, Thomas S. Toellner, Jennifer M. Jackson. Equation of state and spin crossover of (Al,Fe)-phase H. Journal of Geophysical Research: Solid Earth. 2023. 128. 4
  • Masashi Yoshida, Masaaki Miyahara, Hiroki Suga, Akira Yamaguchi, Naotaka Tomioka, Takeshi Sakai, Hiroaki Ohfuji, Fumiya Maeda, Itaru Ohira, Eiji Ohtani, et al. Elucidation of impact event recorded in the lherzolitic shergottite NWA 7397. Meteoritics and Planetary Science. 2021. 56. 9. 1729-1743
  • Itaru Ohira, Jennifer M. Jackson, Wolfgang Sturhahn, Gregory J. Finkelstein, Takaaki Kawazoe, Thomas S. Toellner, Akio Suzuki, Eiji Ohtani. The influence of δ-(Al,Fe)OOH on seismic heterogeneities in Earth’s lower mantle. Scientific Reports. 2021. 11. 12036
  • Yu Shu, Yoshio Kono, Itaru Ohira, Rostislav Hrubiak, Curtis Kenney-Benson, Maddury Somayazulu, Nenad Velisavljevic, Guoyin Shen. Structural Changes in Liquid Lithium under High-Pressure. The Journal of Physical Chemistry B. 2020
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Lectures and oral presentations  (43):
  • Seismic wave speeds of (Al,Fe)-phase H and the detectability of dense oxyhydroxides in Earth’s lower mantle.
    (American Geophysical Union Fall Meeting 2023 2023)
  • Anomalous increase in velocity of calcium aluminate glass during compression process
    (The 9th International Discussion Meeting on Relaxations in Complex Systems (9 IDMRCS) 2023)
  • Pressure and composition dependence of elastic wave velocity of Al2O3-SiO2 Glasses
    (Japan Geoscience Union Meeting 2023 2023)
  • Hydrogen bonding and spin state of (Al,Fe)-bearing phase H at high pressure
    (AGU Fall Meeting 2022 2022)
  • Equation of State and Spin Crossover of (Al,Fe)-bearing phase H
    (2022 COMPRES Annual Meeting 2022)
more...
Education (3):
  • 2015 - 2018 Tohoku University Graduate School of Science Department of Earth Science
  • 2011 - 2013 Tohoku University Graduate School of Science Department of Earth Science
  • 2007 - 2011 Tohoku University Faculty of Science Division of Earth Materials Science
Professional career (1):
  • Ph.D. (Tohoku University)
Work history (6):
  • 2021/04 - 現在 Gakushuin University Department of Chemistry, Faculty of Science Assistant Professor
  • 2020/02 - 2021/03 Earth-Life Science Institute, Tokyo Institute of Technology WPI Postdoctoral research fellow
  • 2020/02 - 2021/03 Ehime University Geodynamics Research Center WPI Postdoctoral research fellow
  • 2018/04 - 2020/01 HPCAT, APS, Argonne National Laboratory (Host institute: Geophysical Laboratory, Carnegie Institution for Science) Visiting Scientist (JSPS Overseas Research Fellowships)
  • 2016/04 - 2018/03 JSPS Research Fellow (DC2)
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Awards (2):
  • 2021/02 - The Earth-Life Science Institute (ELSI) at Tokyo Institute of Technology Director's Achievement Award
  • 2017/05 - JpGU-AGU Joint Meeting 2017 Outstanding Student Presentation Award [Title] Single crystal synthesis of δ-(Al,Fe)OOH using multi-anvil apparatus
Association Membership(s) (3):
American Geophysical Union ,  The Japan Society of High Pressure Science and Technology ,  Japan Geoscience Union
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