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ホーム 研究紹介 自己紹介 論文リスト 研究発表等 ギャラリー

    2020

  1. W.-P. Hsieh, T. Ishii, K.-H. Chao, J. Tsuchiya, F. Deschamps, and E. Ohtani
    2020, Spin transition of iron in δ-(Al,Fe)OOH induces thermal anomalies in Earth's lower mantle
    Geophys. Res. Lett., doi:10.1029/2020GL087036

  2. M. Nishi, Y. Kuwayama, and J. Tsuchiya
    2020, New aluminum hydroxide at multimegabar pressures: Implications for water reservoirs in deep planetary interiors
    Icarus, 338, 113539, doi:10.1016/j.icarus.2019.113539

  3. T. Tsuchiya, J. Tsuchiya, H. Dekura, and S. Ritterbex
    2020, Ab initio study on the lower mantle minerals
    Annual Review of Earth and Planetary Sciences, 48, doi:10.1146/annurev-earth-071719-055139, in press.

  4. Jun Tsuchiya, Risa Nishida, and Taku Tsuchiya
    2020, First principles calculation of the stability of iron bearing carbonates at high pressure conditions
    Minerals, 10, 54, doi:10.3390/min10010054

    5. 2019

  5. M. Nishi, J. Tsuchiya, Y. Kuwayama, T. Arimoto, Y. Tange, Y. Higo, T. Hatakeyama, and T. Irifune
    2019, Solid solution and compression behavior of hydroxides in the lower mantle
    Journal of Geophysical Research -Solid Earth, 124, 10231-10239 doi:10.1029/2019JB018146

  6. Jun Tsuchiya, and Koichiro Umemoto
    2019, First-principles determination of the dissociation phase boundary of phase H MgSiO4H2
    Geophysical Research Letters, 46, 7333-7336, doi:10.1029/2019GL083472

    7. 2018

  7. Masayuki Nishi, Jun Tsuchiya, Takeshi Arimoto, Sho Kakizawa, Takehiro Kunimoto, Yoshinori Tange, Yuji Higo and Tetsuo Irifune
    2018, Thermal equation of state of MgSiO4H2 phase H determined by in situ X-ray diffraction and a multianvil apparatus
    Physics and Chemistry of Minerals, 1-7, doi:10.1007/s00269-018-0980-z

  8. 土屋　旬
    2018 第一原理電子状態計算法を用いた地球深部における含水鉱物の構造・物性研究
    日本結晶学会誌, 60, 1, 48-53, doi:10.5940/jcrsj.60.48

  9. Liang Yuan, Eiji Ohtani, Daijo Ikuta, Seiji Kamada, Jun Tsuchiya, Hirao Naohisa, Yasuo Ohishi and Akio Suzuki
    2018 Chemical reactions between Fe and H2O up to megabar pressures and implications for water storage
    in the Earth's mantle and core
    Geophysical Research Letters, 45, 3, 1330-1338, doi: 10.1002/2017GL075720


    2017

  10. 土屋　旬
    2017 地球惑星内部における含水鉱物の理論的研究
    高圧力の科学と技術（特集-極限の探求：スーパーコンピューター「京」による挑戦-）, 27, 3, 183-188, PDF

  11. Masayuki Nishi, Yasuhiro Kuwayama, Jun Tsuchiya, Taku Tsuchiya
    2017 The pyrite-type high-pressure form of FeOOH
    Nature, 547, 205-208, doi:10.1038/nature22823

  12. Elizabeth C. Thompson, Andrew J. Campbell, and Jun Tsuchiya
    2017 Elasticity of ε-FeOOH: Seismic implications for Earth's lower mantle
    Journal of Geophysical Research - Solid Earth, 122, doi:10.1002/2017JB014168


    2016

  13. Jun Tsuchiya and Taku Tsuchiya
    2016 First principles calculation of the elasticity of ice VIII and X
    The Journal of Chemical Physics, 146, 014501, doi: 10.1063/1.4973339

  14. Joshua P Townsend, Jun Tsuchiya, Craig R Bina, Steven D Jacobsen
    2016 Water partitioning between bridgmanite and postperovskite in the lowermost mantle
    Earth and Planetary Science Letters, 454, 20-27, doi: 10.1016/j.epsl.2016.08.009

  15. Mainak Mookherjee, Jun Tsuchiya, Anant Hariharan
    2016 Crystal structure, equation of state, and elasticity of hydrous aluminosilicate phase, topaz-OH (Al2SiO4(OH)2) at high pressures
    Physics of the Earth and Planetary Interiors, 251, 24-35, doi: 10.1016/j.pepi.2015.11.006

    16. 2015

  16. Jun Tsuchiya and Mainak Mookherjee
    2015 Crystal structure, equation of state, and elasticity of phase H (MgSiO4H2) at Earth’s lower mantle pressures
    Scientific Reports, 5, 15534, doi: 10.1038/srep15534

  17. Joshua P Townsend, Jun Tsuchiya, Craig R Bina, Steven D Jacobsen
    2015 First-principles investigation of hydrous post-perovskite
    Physics of the Earth and Planetary Interiors, 244, 42-48, doi:10.1016/j.pepi.2015.03.010

  18. Mainak Mookherjee, Jun Tsuchiya
    2015 Elasticity of superhydrous phase, B, Mg10Si3O14(OH)4
    Physics of the Earth and Planetary Interiors, 238, 42-50, doi:10.1016/j.pepi.2014.10.010


    2014

  19. Jun Tsuchiya
    地球深部への水の輸送−新たな高密度含水マグネシウムケイ酸塩鉱物の発見
    Iwanami「Kagaku」, 2014.10, 84(10),1063-1064, Contents

  20. L. Bindi, M. Nishi, Jun. Tsuchiya, T. Irifune
    2014 Crystal chemistry of dense hydrous magnesium silicates: The structure of Phase H, MgSiH2O4, synthesized at 45 GPa and 1000 ℃.
    American Mineralogist, 99 1802-1805, doi:10.2138/am.2014.4994.

  21. Nishi, M., T. Irifune,. Tsuchiya, J., Tange, Y., Nishihara, Y., Fujino, K., Higo, Y.,
    2014 Stability of hydrous silicate at high pressures and water transport to the deep lower mantle,
    Nature Geoscience, 7, 224-227, doi:10.1038/ngeo2074.

    2013

  22. J. Tsuchiya
    2013 First principles prediction of a new high pressure phase of dense hydrous magnesium silicates in the lower mantle
    Geophysical Research Letters, 40, 4570-4573, doi:10.1002/grl.50875.

  23. J. Tsuchiya
    2013 A first principles calculation of the elastic and vibrational anomalies of lizardite under pressure
    American Mineralogist, 98, 2046-2052, doi:10.2138/am.2013.4369.

  24. H. Dekura, T. Tsuchiya, and J. Tsuchiya
    2013 Ab initio lattice thermal conductivity of MgSiO3 perovskite as found in Earth's lower mantle
    Physical Review Letters, 110, 025904, doi: 10.1103/PhysRevLett.110.025904.

    2011

  25. H. Dekura, T. Tsuchiya, Y. Kuwayama and J. Tsuchiya
    2011 Theoretical and experimental evidence for a new post-cotunnite phase of titanium dioxide with significant optical absorption
    Physical Review Letters, 107, 045701, doi:10.1103/PhysRevLett.107.045701.

  26. T. Ishikawa, J. Tsuchiya, and T. Tsuchiya
    2011 Stacking-disordered phase of iron in the Earth’s inner core from first principles
    Physical Review B, 83, 212101, doi:10.1103/PhysRevB.83.212101.

  27. H. Dekura, T. Tsuchiya, and J. Tsuchiya
    2011 First-principles prediction of post-pyrite phase transitions in germanium dioxide
    Physical Review B, 83, 134114, doi:10.1103/PhysRevB.83.134114.

  28. J. Tsuchiya, and T. Tsuchiya
    2011 First-principles prediction of a high-pressure hydrous phase of AlOOH
    Physical Review B, 83, 054115, doi:10.1103/PhysRevB.83.054115.

  29. T. Tsuchiya, and J. Tsuchiya
    2011 Prediction of a hexagonal SiO2 phase affecting stabilities of MgSiO3 and CaSiO3 at multimegabar pressures
    Proceedings of the National Academy of Science of the United States of America, 108, 1252-1255, doi:10.1073/pnas.1013594108.

    30. 2010

  30. T. Ishikawa, H. Nagara, N. Suzuki, J. Tsuchiya, and T. Tsuchiya
    2010 Review of high pressure phases of calcium by first-principles calculations
    J. Phys. Conf. Ser., 215, 012105 doi:10.1088/1742-6596/215/1/012105s

  31. T. Ishikawa, H. Nagara, N. Suzuki, T. Tsuchiya, and J. Tsuchiya
    2010 High-pressure phases of calcium Prediction of phase VI and upper-pressure phases from first principles
    Physical Review B, 81, 092104 doi:10.1103/PhysRevB.81.092104

  32. Y.Usui, J. Tsuchiya, and T. Tsuchiya
    2010 Elastic, vibrational and thermodynamic properties of MgGeO3 post-perovskite investigated by first principles simulation
    J. Geophys. Res., 115, B03201, doi:10.1029/2009JB006468.

    33. 2009

  33. K. Kawai, T. Tsuchiya, J. Tsuchiya, and S. Maruyama
    2009 Lost primordial continents
    Gondwana Research, 16, 581-586, doi:10.1016/j.gr.2009.05.012.

  34. J. Tsuchiya, and T. Tsuchiya
    2009 Elastic properties of δ-AlOOH under pressure: first principles investigation
    Physics of the Earth and Planetary Interiors, 174, 122-127, doi:10.1016/j.pepi.2009.01.008.

  35. J. Tsuchiya, and T. Tsuchiya
    2009 First-principles investigation of the structuraland elastic properties of hydrous wadsleyite under pressure
    J. Geophys. Res., 114, B02206, doi:10.1029/2008JB005841

    2008

  36. J. Tsuchiya, and T. Tsuchiya
    2008 Post-perovskite phase equilibria in the MgSiO3-Al2O3 system
    Proceedings of the National Academy of Sciences of the United States of America, 105, 19160-19164, doi:10.1073/pnas.0805660105.

  37. T. Shinmei, T. Irifune, J. Tsuchiya and K. Funakoshi
    2008 Phase transition and compression behavior of phase D up to 46 GPa using multi-anvil apparatus with sintered diamond anvils
    High Press. Res. 28, 363-373, doi:10.1080/08957950802246514.

  38. H. Yusa, T. Tsuchiya, and J. Tsuchiya
    2008 Alpha-Gd2S3 type structure in In2O3: Experiments and theoretical confirmation of a new high-pressure polymorph in sesquioxide
    Phys. Rev. B, 78, 092107, doi:10.1103/Phys.RevB.78.092107.

  39. J. Tsuchiya, and T. Tsuchiya
    2008 Elastic properties of phase D (MgSi2O6H2) under pressure: ab initio investigation
    Physics of the Earth and Planetary Interiors, 170, 215-220, doi:10.1016/j.pepi.2008.05.015.

  40. J. Tsuchiya, T. Tsuchiya, A. Sano, and E. Ohtani
    2008 First principles prediction of new high-pressure phase of InOOH
    Journal of Mineralogical and Petrological Sciences, 103, 116-120, doi:10.2465/jmps.071022e.

  41. A. Sano, T. Yagi, T. Okada, H. Gotou, E. Ohtani, J. Tsuchiya, and T. Kikegawa
    2008 X-ray diffraction study of high pressure transition in InOOH
    Journal of Mineralogical and Petrological Sciences, 103, 152-155, doi:10.2465/jmps.071022m.

  42. J. Tsuchiya T. Tsuchiya and R. M. Wentzcovitch
    2008 Vibrational properties of δ-AlOOH under pressure
    American Mineralogist, 93, 477-482,　doi:10.2138/am.2008.2627.

    43. 2007

  43. T. Tsuchiya, H. Yusa and J. Tsuchiya
    2007 Post-Rh2O3(II) transition and the high pressure-temperature phase diagram of gallia
    A first principles and x-ray diffraction study, Physical Review B, 76, 174108, doi:10.1103/PhysRevB.76.174108.

  44. T. Tsuchiya, and J. Tsuchiya
    2007 High-pressure-temperature phase relations in MgGeO3 : First-principles calculations
    Physical Review B, 76, 092105, doi:10.1103/PhysRevB.76.092105.

  45. T. Tsuchiya, and J. Tsuchiya
    2007 Structure and elasticity of Cmcm CaIrO3 and their pressure dependence: Ab initio calculations
    Physical Review B, 76, 144119, doi:10.1103/PhysRevB.144119.

  46. P. Carrier, R. Wentzcovitch and J. Tsuchiya
    2007 First-principles prediction of crystal structures at high temperatures using the quasiharmonic approximation
    Physical Review B, 76, 064116, doi:10.1103/PhysRevB.76.064116.

    2006

  47. T. Tsuchiya, and J. Tsuchiya
    2006 New high-pressure phase relations in CaSnO3
    American Mineralogist, 91, 1879-1887,doi:10.2138am.2006.2221.

  48. T. Tsuchiya, R. M. Wentzcovitch, C. R. S. da Silva, S. de Gironcoli and J. Tsuchiya
    2006 Pressure induced high spin to low spin transition in magnesiowüstite
    Physica Status Solidi B, 243, 2111-2116, doi:101002/pssb.200666814.

  49. T. Tsuchiya, J. Tsuchiya
    2006 Effect of impurity on the elasticity of perovskite and postperovskite:
    Velocity contrast across the post perovskite transition in (Mg, Fe, Al)(Si, Al)O5
    Geophysical Research Letters, 33, L12S04, doi:10.1029/2006GL025706.

  50. R. M. Wentzcovitch, T. Tsuchiya, J. Tsuchiya
    2006 MgSiO3 postperovskite at D” conditions
    Proceedings of the National Academy of Sciences of the United States of America, 103, 543-546 doi:10.1073/pnas.0506879103.

    51. 2005

  51. J. Tsuchiya, T. Tsuchiya and R. M. Wentzcovitch
    2005 Transition from the Rh2O3(II)-to CaIrO3 structure and the high-pressure-temperature phase diagram of alumina
    Physical Review B, 72, 02010(R), doi:10.1029/2006GL025706.

  52. J. Tsuchiya, T. Tsuchiya and R. M. Wentzcovitch
    2005 Vibrational and thermodynamic properties of MgSiO3 post-perovskite
    Journal of Geophysical Research, 110, B02204, doi:10.1029/2004JB003409.

  53. S. Ono, T. Kikegawa, Y. Ohishi, N. Sata and J. Tsuchiya
    2005 Post-aragonite phase transformation in CaCO3 at 40 Gpa
    American Mineralogist, 90, 667-671, doi:10.2138/am.2005.1610.

  54. J. Tsuchiya, T. Tsuchiya and S. Tsuneyuki
    2005 First principles study of hydrogen bond symmetrization of phase D under high pressure
    American Mineralogist, 90, 44-49 doi:10.2138/am.2005.1628.

    55. 2004

  55. T. Tsuchiya, J. Tsuchiya, K. Umemoto and R. M. Wentzcovitch
    2004 Phase transition in MgSiO3 perovskite in the Earth’s lower mantle
    Earth and Planetary Science Letters, 224, 241-248, doi:10.1016/j.epsl.2004.05.017.

  56. T. Tsuchiya, J. Tsuchiya, K. Umemoto and R. M. Wentzcovitch
    2004 Elasticity of post-perovskite MgSiO3
    Geophysical Research Letters, 31, No. 14, L14603, doi:10.1029/2004GL020278.

  57. T. Tsuchiya, R. Caracas and J. Tsuchiya
    2004 Phase diagram of silica at the high-temperature and high-pressure conditions of the Earth's deep mantle
    Geophysical Research Letters, 31, No. 11, L11610, doi:10.1029/ 2004GL019649.

    58. 2002

  58. J. Tsuchiya, T. Tsuchiya, S. Tsuneyuki and T. Yamanaka
    2002 First principles calculation of a high-pressure hydrous phase, δ-AlOOH
    Geophysical Research Letters, 29, 1909, doi:10.1029/2002GL015417.

  59. T. Yamanaka, T. Fukuda and J. Mimaki,
    2002 Bonding character of SiO2 stishovite under high pressures up to 30GPa
    Physics and Chemistry of Minerals, 29, 633-641, doi.

  60. T. Hattori, J. Mimaki and T. Yamanaka
    2002 Molecular orbital study on the onset of the pressure-induced transformations of the metastably compressed germinates
    Physics and Chemistry of Minerals, 29, 261-266.

    61. 2000

  61. J. Mimaki, T. Tsuchiya and T. Yamanaka
    2000 The bond character of rutile structure SiO2, GeO2 and SnO2 investigated by molecular orbital calculation.,
    Zeitschrift für Kristallographie, 215, 419-423 doi.

  62. T. Yamanaka、R. Kurashima and J. Mimaki
    2000 X-ray diffraction study of bond character of rutile-type SiO2, GeO2 and SnO2
    Zeitschrift für Kristallographie, 215, 424-428, doi.

　　　
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