Welcome to HACTO

We aim elucidate the structure, dynamics and evolution of the
Earth's interior by experimental study of the physical and
chemical properties of the Earth's constituents.

2017.12.22 Year-end-party in Misasa
2017.08.05 BBQ @ Natsudomari Beach Photo
2017.08.01 Dr. Xu Fang joined SOLEIL, the synchrotron facility in France as a postdoc
2017.03.25 Xu Fang obtained a Doctor of Philosophy
2017.01.05  Essay "Kakenhi and Me" written by Prof. E. Ito posted on JSPS website Click here
2016.12.22 Year-end-party was held at Seiryuso Photo 

Past topics


  Click here
2017.08.01 Wu, Y., Qin, F., Wu, X., Huang, H., McCammon, C.A., Yoshino, T., Zhai, S., Xiao, Y., Prakapenka, V.B., Spin transition of ferric iron in the calcium-ferrite type aluminous phase, J. Geophys. Res., 122, 5935-5944, 2017
2018.07.21 Click here
T. Katsura, K. Baba, T. Yoshino, T. Kogiso, 2017. Electrical conductivity of the oceanic asthenosphere and its interpretation based on laboratory measurements. Tectnophysics, 717, 162-181.
2017.07.19 Click here
  Ono, K., Harada, Y., Yoneda, A., Yamamoto, J., Yoshiasa, A., Sugiyama, K., Arima, H., Watanabe, T., Determination of elastic constants of single-crystal chromian spinel by resonant ultrasound spectroscopy and implications for fluid inclusion geobarometry, Phys. Chem. Minerals, 1-11, 2017.
2017.06.14 Click Here
  S.S. Lobanov, H. Hsu, J.-F. Lin, T. Yoshino, A.F. Goncharov, 2017. Optical signatures of low spin Fe3+ in NAL at high pressure. Journal of Geophysical Research, 122, 3565-3573.
2017.06.07 Click Here
  Fei, H., Yamazaki, D., Sakurai, M., Miyajima, N., Ohfuji, H., Katsura, T., Yamamoto, T., A nearly water-saturated mantle transition zone inferred from mineral viscosity, Sci. Adv., 3, e1603024, 2017.
2017.06.01 Click here
  Fukui, H., Baron, A., Ishikawa, D., Uchiyama, H., Ohishi, Y., Tsuchiya, T., Kobayashi, H., Matsuzaki, T., Yoshino, T., Katsura, T., Pressure dependence of transverse acoustic phonon energy in ferropericlase across the spin transition, J. Phys. Condens. Matter, 29, 245401, 2017
2017.03.23 Click here
  T. Yoshino, B. Zhang, B. Rhymer, C. Zhao, H. Fei, 2017. Pressure dependence of electrical conductivity in forsterite. Journal of Geophysical Research, 122, 158-171
2017.02.01 Click here
  D. Yamazaki, N. Tsujino, A. Yoneda, E. Ito, T. Yoshino, Y. Tange, Y Higo. Grain growth of ε-iron: Implications to grain size and its evolution in the Earth's inner core. Earth and Planetary Science Letters, 459, 238–243
Click here
  F. Xu, D. Yamazaki, N. Sakamoto, W. Sun, H. Fei, H. Yurimoto. Silicon and oxygen self-diffusion in stishovite: Implications for stability of SiO2-rich seismic reflectors in the mid-mantle. 459, 332–339
2017.01.24 Click here
  Liu, J., Lin, J.-F., Prakapenka, V. B., Prescher, C., Yoshino, T., Phase relations of Fe3C and Fe7C3 up to 185 GPa and 5200 K: Implication for the stability of iron carbide in the Earth’s core, Geophys. Res. Lett., 43, 12,415–12,422, 2016.
2017.01.18 Click here
  B. Zhang, T. Yoshino, 2017. Effect of graphite on the electrical conductivity of the lithospheric mantle. Geochemistry, Geophysics, Geosystems, 18. doi: 10.1002/2016GC006530
2017.01.06 Click here
  Y. Nakamura, T. Yoshino, M. Satish-Kumar, 2017. An experimental kinetic study on the structural evolution of natural carbonaceous material to graphite. American Mineralogists, 102, 135-148. doi:10.2138/am-2017-5733
  For more publications, click here 
Press Release  Japanese only
2017.10.12 半導体ダイヤモンドヒーターによる超高温発生 半導体ダイヤモンドヒーターを開発し、超高圧下で約4000Kの超高温発生に成功
2016.10.18 地球マントル最下部D”層の謎を解明 ポストペロブスカイト構造の結晶弾性を非弾性X線散乱法により世界で初めて測定
2016.09.20 下部マントル深部の地震波速度異常(LLSVPs)を解き明かす鍵
2014.02.20 夢の百万気圧達成
2014.03.27 地球マントル最下部D”層の謎を解明 ポストペロブスカイト構造の結晶弾性を非弾性X線散乱法により世界で初めて測定
2014.09.25 沈み込み帯スラブがマントル遷移層に水を供給することを解明