査読付き原著論文
M. Nishi, K. Takahashi, H. Dekura, K. Kawano, H. Koike, K. Nakamura, T. Kondo, H. Kuwahara, S. Kakizawa, N. Tsujino, Y. Higo, In Situ Observation of Pressure‐Enhanced Hydrous–Anhydrous Solid Solution in Lower‐Mantle SiO₂–AlOOH Phases, Geophysical Research Letters, 53, e2026GL124407, 2026. https://doi.org/10.1029/2026GL124407
K. Nakamura, M. Nishi (corresponding), T. Kondo, G. Takaichi, S. Gréaux, H. Kuwahara, et al., Equilibrium and metastable phase relations of the CaSiO₃–MgSiO₃ system: formation and stability of CM-perovskite, High Pressure Research, 1–15, 2026 https://doi.org/10.1080/08957959.2026.2627365
K. Kawano, M. Nishi (corresponding), H. Kuwahara, S. Kakizawa, T. Inoue, and T. Kondo, Extensive iron–water exchange at Earth's core–mantle boundary can explain seismic anomalies, Nature Communications 15, 8701, 2024 https://doi.org/10.1038/s41467-024-52677-9
G. Takaichi, Y. Nishihara, Y. Matsukage, M. Nishi, Y. Higo, Y. Tange, N. Tsujino, S. Kakizawa, Limited stability of hydrous SiO2 stishovite in the deep mantle, Earth and Planetary Science Letters 640, 2024 https://doi.org/10.1016/j.epsl.2024.118790
M. Nishi, S. Jin, K. Kawano, H. Kuwahara, A. Yamada, S. Kawaguchi, Y. Mori, T. Sakaiya, T. Kondo, Effect of grain size on amorphization mechanism and kinetics of bridgmanite in shocked meteorites, Progress in Earth and Planetary Science 10, 41, 2023 https://doi.org/10.1186/s40645-023-00572-0
M. Nishi, A. Kaneko, H. Ohgidani, H. Dekura, S. Kakizawa, S. Kawaguchi, S. Kobayashi, T. Sakaiya, T. Kondo, Bridgmanite Freezing in Shocked Meteorites Due To Amorphization-Induced Stress, Geophysical Research letters 49, 2022 https://doi.org/10.1029/2022GL098231
G. Takaichi, M. Nishi (corresponding), Y. Zhou, S. Machida, G. Kitahara, A. Yoshiasa, T. Irifune, High-temperature phase relations of hydrous aluminosilicates at 22 GPa in the AlOOH-AlSiO3OH system, American Mineralogist, 108, 826-831, 2023 https://doi.org/10.2138/am-2022-8429
M. Nishi, Y. Kuwayama, T. Hatakeyama, S. Kawaguchi, N. Hirao, Y. Ohishi, T. Irifune, Chemical Reaction Between Metallic Iron and a Limited Water Supply Under Pressure: Implications for Water Behavior at the Core‐Mantle Boundary, Geophysical Research letters 47, 2020 https://doi.org/10.1029/2020GL089616
Y. Fujishiro, N. Kanazawa, T. Shinmei, M. Nishi, T. Nakajima, T. Arima, D. Hashizume, M. S. Bahramy, T. Irifune, Y. Tokura, Monoclinic semimetal IrSi synthesized under high pressure above 25 GPa: crystal structure, electronic and magnetic properties, Physical Review Materials 4, 055002, 2020
西真之, 含水鉱物による地球深部への水輸送, 高圧力の科学と技術 30, 95-101, 2020.
M. Nishi, Y. Kuwayama, J. Tsuchiya, New aluminium hydroxide at multimegabar pressures: Implications for water reservoirs in deep planetary interiors, Icarus 338, 113539, 2020
M. Nishi, J. Tsuchiya, Y. Kuwayama, T. Arimoto, Y. Tange, Y. Higo, T. Hatakeyama, T. Irifune, Solid Solution and Compression Behavior of Hydroxides in the Lower Mantle, Journal of Geophysical Research: Solid Earth 124, 10231-10239, 2019
C. Xu, M. Nishi, T. Inoue, Solubility behavior of δ-AlOOH and e-FeOOH at high pressures, American Mineralogist 104, 1416-1420, 2019
T. Arimoto, T. Irifune, M. Nishi, Y. Tange, T. Kunimoto, Z. Liu, Phase relations of MgSiO3 FeSiO3 system up to 64 GPa and 2300 K using multianvil apparatus with sintered diamond anvils, Physics of the Earth and Planetary Interiors 295, 106279, 2019
M. Nishi, S. Gréaux, S. Tateno, Y. Kuwayama, K. Kawai, T. Irifune, S. Maruyama, High-pressure phase transitions of anorthosite crust in the Earth’s deep mantle, Geoscience Frontiers 9, 1859-1870, 2018
M. Nishi, J. Tsuchiya, T. Arimoto, S. Kakizawa, K. Kunimoto, Y. Tange, Y. Higo, T. Irifune, Thermal equation of state of MgSiO4H2 phase H determined by in situ X-ray diffraction and a multianvil apparatus, Physics and Chemistry of Minerals 45, 995-1001, 2018
S. Greaux, M. Nishi et al., High-pressure phase relation of KREEP basalts: A clue for finding the lost Hadean crust?, Physics of the Earth and Planetary Interiors 274, 184-194, 2018
M. Nishi, Y. Kuwayama, J. Tsuchiya, T. Tsuchiya, The pyrite-type high-pressure form of FeOOH, Nature 547, 205-208, 2017
T. Kimura, H. Ohfuji, M, Nishi, T. Irifune, Melting temperatures of MgO under high pressure by micro-texture analysis, Nature Communications 8, 15735, 2017
Z. Liu, M. Nishi, et al., Phase Relations in the System MgSiO3‐Al2O3 up to 2300 K at Lower Mantle Pressures, Journal of Geophysical Research: Solid Earth, 122, 7775– 7788.
Y. Nishihara, G. Maruyama, M. Nishi, Growth kinetics of forsterite reaction rims at high-pressure, Physics of the Earth and Planetary Interiors 257, 220-229, 2016.
Z. Liu, T. Irifune, M. Nishi, Y. Tange, T. Arimoto, T. Shinmei, Phase relations in the system MgSiO3-Al2O3 up to 52 GPa and 2000 K, Physics of the Earth and Planetary Interiors 257, 18-27, 2016
M. Nishi, T. Irifune, S. Gréaux, Y. Tange, Y. Higo. Phase transitions of serpentine in the lower mantle, Physics of the Earth and Planetary Interiors 245, 52-58, 2015.
西真之, 下部マントル条件下での拡散律速反応帯成長と非平衡相転移, 高圧力の科学と技術, 25, 172-180. 2015.
T. Ohuchi, Y. Nishihara, Y. Seto, T. Kawazoe, M. Nishi, G. Maruyama, M. Hashimoto, Y. Higo, K. Funakoshi, A. Suzuki, T. Kikegawa, T. Irifune, In situ observation of crystallographic preferred orientation of deforming olivine at high pressure and high temperature, Physics of the Earth and Planetary Interiors 243, 1-21, 2015.
L. Bindi, M. Nishi, T. Irifune. Partition of Al between Phase D and Phase H at high pressure: Results from a simultaneous structure refinement of the two phases coexisting in a unique grain, 2015, American Mineralogist 100, 1637-1640, 2015.
L. Bindi, M. Nishi, J. Tsuchiya, T. Irifune, Crystal chemistry of dense hydrous magnesium silicates: The structure of Phase H, MgSiH2O4, synthesized at 45 GPa and 1000 °C, American Mineralogist 99, 1802-1805, 2014
M. Nishi, T. Irifune, J. Tsuchiya, Y. Tange, Y. Nishihara, K. Fujino, Y. Higo, Stability of hydrous silicate at high pressures and water transport to the deep lower mantle, Nature geoscience 7, 224-227, 2014.
西真之, マントル遷移層の非平衡鉱物構成, 高圧力の科学と技術 24, 136-144, 2014. (日本語論文)
A. Shimojuku, T. Kubo, T. Kato, T. Yoshino, M. Nishi, T. Nakamura, R. Okazaki, Y. Kakazu, Effects of pressure and temperature on the silicon diffusivity 1 of pyrope-rich garnet, Physics of the Earth and Planetary Interiors 226, 28-38, 2014.
M. Nishi, Y. Nishihara, T. Irifune, Growth kinetics of MgSiO3 perovskite reaction rim between stishovite and periclase up to 50 GPa and its implication for grain boundary diffusivity in the lower mantle, Earth and Planetary Science Letters 377-378, 191-198, 2013.
M. Nishi, T. Kubo, H. Ohfuji, T. Kato, Y. Nishihara, T. Irifune, Slow Si-Al interdiffusion in garnet and stagnation of subducting slabs, Earth and Planetary Science Letters 361, 44-49, 2013.
M. Nishi, T. Irifune, H. Ohfuji, Y. Tange, Intracrystalline nucleation during the post-garnet transformation under large overpressure conditions in deep subducting slabs, Geophysical Research. Letters 39, L23302, 2012.
M. Nishi, T. Kubo, T. Kato, A. Tominaga, K. Funakoshi, Y. Higo, Exsolution kinetics of majoritic garnet from clinopyroxene in subducting oceanic crust, Physics of the Earth and Planetary Interiors 47-55, 2011.
T. Yoshino, E. Ito, T. Katsura, D. Yamazaki, S. Shan, X. Guo, M. Nishi, Y. Higo, K. Funakoshi, Effect of iron content on electrical conductivity of ferropericlase with implications for the spin transition pressure, Journal of Geophysical Research: Solid Earth 116, B04202, 2011.
M. Nishi, T. Kubo, T. Kato, A. Tominaga, A. Shimojuku, N. Doi, K. Funakoshi, Y. Higo, Survival of majoritic garnet in diamond by direct kimberlite ascent from deep mantle, Geophysical Research. Letter 37, L09305, 2010.
D. Yamazaki, E. Ito, T. Yoshino, X.-G. Guo, S. Shun, M. Nishi, Y. Higo, K. Funakoshi, Preliminary reports on in-situ X-ray observation of "post- perovskite" in CaRuO3, Journal of Physics: Conference Series 215, 122096, 2010
T. Kubo, M. Kimura, T. Kato, M. Nishi, A. Tominaga, T. Kikegawa K. Funakoshi, Plagioclase breakdown as an indicator for shock conditions of meteorites, Nature Geoscience 3, 41-45, 2010.
M. Nishi, T. Kubo, and T. Kato, Metastable transformations of eclogite to garnetite in subducting oceanic crust, Journal of Mineralogical and Petrological Sciences 104, 192-198, 2009.
M. Nishi, T. Kato, T. Kubo, T. Kikegawa, Survival of pyropic garnet in subducting plates, Physics of the Earth and Planetary Interiors 170, 274-280, 2008.
T. Yoshino, M. Nishi, T. Matsuzaki, D. Yamazaki, T. Katsura: Electrical conductivity of majorite garnet and its implications for electrical structure in the mantle transition zone, Physics of the Earth and Planetary Interiors 170, 193-200, 2008.