KAGI, Hiroyuki

Geochemical Research Center

Office: Chemistry West-Wing-2701
TEL: +81-3-5841-7625
FAX: +81-3-5841-4119

Research Field

Inorganic geochemistry, mineral sciences, high- pressure sciences, Deep earth mineralogy

Current Research

(1) Pressure-response on hydrous minerals, ices, hydrates, etc. from in-situ observations of vibrational spectra, X-ray diffraction and neutron diffraction.
(2) Hydrogen in metal at high pressure and high temperature (Light elements in the Earth's core and planetary core).
(3) Oligomerization of amino acids at high pressure under prebiotic conditions.
(4) Introduction of incompatible ions into biominerals.
(5) Mantle minerals in natural diamonds.

Representative Publications

1. Yamane R., Komatsu K., Gouchi J., Uwatoko Y., Machida S., Hattori T., Ito H., and Kagi H. (2021) Experimental evidence for the existence of a second partially-ordered phase of ice VI. Nature Communications, 12, 1129.
2. Komatsu K., Machida S., Noritake F., Hattori T., Sano-Furukawa A., Yamane R., Yamashita K., and Kagi H. (2020) Ice Ic without stacking disorder by evacuating hydrogen from hydrogen hydrate. Nature Communications, 11, 464.
3. Fukuyama K., Kagi H., Inoue T., Kakizawa S., Shinmei T., Hishita S., Takahata N., and Sano Y. (2020) High nitrogen solubility in stishovite (SiO2) under lower mantle conditions., Scientific Reports, 10.1038/s41598-020-67621-2.