TSUCHIYA, Taku

Faculty
Geodynamics Research Center
PositionProfessor
Mail
HomepageURL
Birthday
Last Updated :2017/11/18

Researcher Profile and Settings

Education

  •  - 1997 , Osaka University, Graduate School, Division of Natural Science, Department of physics
  •  - 2000 , Osaka University, Graduate School, Division of Natural Science, Department of Earth and Space Science

Academic & Professional Experience

  •   2009 , - Geodynamics Research Center, Ehime University
  •   2007 ,  - 2009 ,  Geodynamics Research Center, Ehime University

Association Memberships

  • The Mineralogical Society of Japan
  • The Japan Society of High Pressure Science and Technology
  • American Geophysical Union
  • American Physical Society

Committee Memberships

  •   2007  - 2007 , The Mineralogical Society of Japan
  •   2006  - 2008 , The Japan Society of High Pressure Science and Technology
  •   2006  - 2008 , The Japan Society of High Pressure Science and Technology
  •   2008  - 2009 , The Japan Society of High Pressure Science and Technology
  •   2007  - 2007 , American Geophysical Union

Research Activities

Research Interests

    Understanding detail structure of the deep Earth, physical and chemical property of Earth forming materials, mantle and core dynamics, and origin and evolution of the Earth and planet.

Misc

  • Transition from the Rh2O3(II)-to-CaIrO3 structure and the high-pressure-temperature phase diagram of alumina
    American Physical SocietyPhysical Review B, 72,   2005
  • Vibrational and thermodynamic properties of MgSiO3 post-perovskite
    American Geophysical UnionJournal of Geophysical Research, 110,   2005
  • First principles study of hydrogen bond symmetrization of phase D under high pressure
    Mineralogical Society of AmericaAmerican Mineralogist, 90, (1) 44 - 49,   2005
  • Multi-disciplinary impact of the deep mantle post-perovskite phase transition
    American Geophysical UnionEOS, Transactions, 86,   2005
  • Local behavior of water molecules on brucite, talc, and halite surfaces: a molecular dynamics study
    Taylor & FrancisMolecular Simulation, 30,   2004
  • Molecular dynamics simulation of dislocations in wurtzite-type GaN crystal
    American Institute of PhysicsJournal of Applied Physics, 96, (5) 2513 - 2524,   2004
  • Molecular dynamics simulation for evaluating melting point of wurtzite-type GaN crystal
    American Institute of PhysicsJournal of Applied Physics, 96, (5) 2501 - 2512,   2004
  • Elasticity of post-perovskite MgSiO3
    American Geophysical UnionGeophysical Research Letters, 31,   2004
  • Phase transition in MgSiO3 perovskite in the Earth's lower mantle
    ElsevierEarth and Planetary Science Letters, 224, (3/4) 241 - 248,   2004
  • First principles determination of the phase boundaries of high-pressure polymorphs of silica
    American Geophysical UnionGeophysical Research Letters, 31,   2004
  • High pressure and high temperature phase transitions of FeO
    ElsevierPhysics of Earth and Planetary Interiors, 146, (1/2) 273 - 282,   2004
  • Molecular dynamics of magnesium diffusion in wurtzite-type GaN crystal
    Japanese Journal of Applied Physics, 43, (2) 522 - 531,   2004
  • Magnesium diffusion in wurtzite-type GaN crystal
    WileyPhysica Status Solidi C, 0,   2003
  • Melting point of wurtzite-type GaN crystal
    WileyPhysica Status Solidi C, 0,   2003
  • Structural refinements of high-pressure phases in germanium dioxide
    International Union of CrystallographyActa Crystallographica B, 59,   2003
  • The phase transition between the CaCl2-type and α-PbO2-type structures of germanium dioxide
    American Physical SocietyPhysical Review B, 68,   2003
  • First-principles prediction of the P-V-T equation of state of gold and the 660-km discontinuity in Earth's mantle
    American Geophysical UnionJournal of Geophysical Research, 108,   2003
  • High-pressure form of pyrite-type germanium dioxide
    American Physical SocietyPhysical Review B, 68,   2003
  • Large self-diffusion of water on brucite surface by ab initio potential energy surface and molecular dynamics simulations
    ElsevierSurface Science, 536, (1/3) L396 - L402,   2003
  • First-principles electronic thermal pressure of metal Au and Pt
    American Physical SocietyPhysical Review B, 66,   2002
  • First-principles study of systematics of high-pressure elasticity in rare gas solids, Ne, Ar, Kr and Xe
    American Institute of PhysicsThe Journal of Chemical Physics, 117, (12) 5859 - 5865,   2002
  • First principles calculation of a high-pressure hydrous phase, δ-AlOOH
    American Geophysical UnionGeophysical Research Letters, 29,   2002
  • Precise measurement of equation-of-state and elastic properties for GaN up to 16 GPa
    ElsevierSolid State Communications, 121, (9/10) 555 - 559,   2002
  • Ab initio study of pressure effect on elastic properties of crystalline Au
    American Institute of PhysicsThe Journal of Chemical Physics, 116, (5) 2121 - 2124,   2002
  • Sequential high-pressure transformations of FeGeO3 high-P clinopyroxene (C2/c) at temperatures up to 365 ℃
    SpringerPhysics and Chemistry of Minerals, 28, (6) 377 - 387,   2001
  • Systematics of elasticity: Ab initio study in B1-type alkaline earth oxides
    American Institute of PhysicsThe Journal of Chemical Physics, 114, (22) 10086 - 10093,   2001
  • The bond character of rutile structure SiO2, GeO2 and SnO2 investigated by molecular orbital calculation
    OldenbourgZeitschrift fur Kristallographie, 215,   2000
  • Molecular dynamics study of pressure-induced transformation of quartz-type GeO2
    SpringerPhysics and Chemistry of Minerals, 27, (3) 149 - 155,   2000
  • Clinopyroxene-perovskite phase transition of FeGeO3 under high pressure and room temperature
    SpringerPhysics and Chemistry of Minerals, 26, (3) 212 - 216,   1999
  • First observation of FeGeO3-perovskite under high pressure
    ElsevierSolid State Communications, 107, (5) 223 - 225,   1998
  • Molecular dynamics study of the crystal structure and phase relation of the GeO2 polymorphs
    SpringerPhysics and Chemistry of Minerals, 25, (2) 94 - 100,   1998
  • Mechanism of pressure-induced amorphization
    OldenbourgZeitschrift fur Kristallographie, 212,   1997
  • EXAFS study on the anharmonic effective pair potential in rutile type, α-quartz type GeO2
    EDP SciencesJournal de Physique IV, Colloque, 7,   1997
  • Precise measurement of equation-of-state and elastic properties for GaN up to 16 GPa
    PFPF Activity Report Highlight,   2003
  • Molecular Dynamics of Pressure-Induced Structural Transformations and Elastic Stability in Oxide Minerals
      2000
  • Dynamical observation of the pressure-induced structure change
    KEKKEK Proceedings, 14,   1999
  • MgSiO3 post-perovskite at D" conditions
    The National Academy of Sciences of the United States of AmericaProceedings of the National Academy of Sciences of the United States of America, 103, (3) 543 - 546,   2006
  • Spin transition in magnesiowustite in the Earth's lower mantle
    American Physical SocietyPhysical Review Letters, 96,   2006
  • Effect of impurity on the elasticity of perovskite and postperovskite: Velocity contrast across the postperovskite transition in (Mg,Fe,Al)(Si,Al)O3
    American Geophysical UnionGeophysical Research Letters, 33,   2006
  • MgSiO3 post-perovskite at D" conditions
    ElsevierGeochimica et Cosmochimica Acta, 69,   2005
  • MgSiO3 post-perovskite at D" conditions
    International Union of CrystallographyActa Crystallographica A, 61,   2005
  • Pressure induced high spin to low spin transition in magnesiowustite
    WileyPhysica Status Solidi B, 243, (9) 2111 - 2116,   2006
  • New high-pressure phase relations in CaSnO3
    Mineralogical Society of AmericaAmerican Mineralogist, 91, (11/12) 1879 - 1887,   2006
  • First principles investigation of the postspinel transition in Mg2SiO4
    American Geophysical UnionGeophysical Research Letters, 34,   2007
  • Vibrational properties of δ-AlOOH under pressure
    Mineralogical Society of AmericaAmerican Mineralogist, 93, (2-3) 477 - 482,   2008
  • High-pressure-high-temperature phase relations of MgGeO3: First-principles calculations
    American Physical SocietyPhysical Review B, 76,   2007
  • Post-Rh2O3(II) transition and the high-P,T phase diagram of gallia: A first principles and x-ray diffraction study
    American Physical SocietyPhysical Review B, 76,   2007
  • Structure and elasticity of Cmcm CaIrO3 and their pressure dependences: Ab initio calculations
    American Physical SocietyPhysical Review B, 76,   2007
  • Rh2O3(II)-type structures in Ga2O3 and In2O3 under high pressure
    American Physical SocietyPhysical Review B, 77,   2008
  • First principles prediction of the new high pressure phase of InOOH
    Japan Association of Mineralogical SciencesJournal of Mineralogical and Petrological Sciences, 103, (2) 116 - 120,   2008
  • Spin transition of iron in the Earth's lower mantle
    Physics of Earth and Planetary Interiors, 170, (3-4) 248 - 259,   2008
  • Elastic properties of phase D (MgSi2O6H6) under pressure
    Physics of Earth and Planetary Interiors, 170, (3-4) 215 - 220,   2008
  • α-Gd2S3 type structure in In2O3: Experiments and theoretical confirmation of a new high-pressure polymorph in sesquioxide
    American Physical SocietyPhysical Review B, 78,   2008
  • Post-perovskite phase equilibria in the MgSiO3-Al2O3 system
    The National Academy of Sciences of the United States of AmericaProceedings of the National Academy of Sciences of the United States of America, 105, (49) 19160 - 19164,   2008
  • First-principles investigation of the structural and elastic properties of hydrous wadsleyite under pressure
    American Geophysical UnionJournal of Geophysical Research, 114,   2009
  • Unified analyses for P-V-T equation of state of MgO: A solution for pressure-scale problems in high P-T experiments
    American Geophysical UnionJournal of Geophysical Research, 114,   2009
  • Effects of Si on the elastic property of Fe at Earth's inner core pressures: First principles study
    ElsevierPhysics of Earth and Planetary Interiors, 174, (1-4) 212 - 219,   2009
  • Elastic properties of δ-AlOOH under pressure: first principles investigation
    ElsevierPhysics of Earth and Planetary Interiors, 174, (1-4) 122 - 127,   2009
  • High-pressure phase transition to the Gd2S3 structure in Sc2O3: A new trend in dense structures in sesquioxides
    American Chemical SocietyInorganic Chemistry, 48, (16) 7537 - 7543,   2009
  • Lost primordial continents
    Gondwana Research, 16, (3-4) 581 - 586,   2009
  • The bond character of rutile structure SiO2, GeO2 and SnO2 investigated by molecular orbital calculation
    Zeitschrift für Kristallographie, 215,   2000
  • Elastic, vibrational and thermodynamic properties of MgGeO3 post-perovskite investigated by first principles simulation
    American Geophysical UnionJournal of Geophysical Research, 115,   2010
  • Temperature profile in the lowermost mantle from seismological and mineral physics joint modeling
    The National Academy of Sciences of the United States of AmericaProceedings of the National Academy of Sciences of the United States of America, 106, (52) 22119 - 22123,   2009
  • A dense yttria phase eclipsing the A-type sesquioxide structure: high-pressure experiments and ab initio calculations
    American Chemical SocietyInorganic Chemistry, 49, (10) 4478 - 4485,   2010
  • Ab initio two phase molecular dynamics on the melting curve of SiO2
    SpringerJournal of Earth Science, 21, (5) 801 - 810,   2010
  • Ab initio investigation of high-pressure phase relation and elasticity in the NaAlSi2O6 system
    American Geophysical unionGeophysical Research Letters, 37,   2010
  • Ultrahigh-pressure scales for gold and platinum at pressures up to 550 GPa
    Physical Review B, 80,   2009
  • High-pressure phases of calcium: Prediction of phase VI and upper-pressure phases from first principles
    Physical Review B, 81,   2010
  • Review of high pressure phases of calcium by first-principles calculations
    Journal of Physics: Conference Series, 215,   2010
  • Effect of hydrogen on the melting temperature of FeS at high pressure: Implications for the core of Ganymede
    Earth Planetary Science Letters, 301, (1-2) 153 - 158,   2011
  • Prediction of a hexagonal SiO2 phase affecting stabilities of MgSiO3 and CaSiO3 at multimegabar pressures
    The National Academy of Sciences of the United States of AmericaProceedings of the National Academy of Sciences of the United States of America, 108, (4) 1252 - 1255,   2011
  • The second continent
    Tokyo Geography SocietyJournal of Geography, 119, (6) 1197 - 1214,   2011
  • Research frontier on the ultrahigh-pressure structures of Earth and planetary materials
    Taku TSUCHIYA, Nihon Kessho Gakkaishi, 53, (1) 2 - 7,   2011
  • First principles prediction of a high-pressure hydrous phase of AlOOH
    American Physical SocietyPhysical Review B, 83,   2011
  • First principles prediction of post-pyrite phase transitions in germanium dioxide
    American Physical SocietyPhysical Review B, 83,   2011
  • Stacking-disordered phase of iron in the Earth's inner core from first principles
    American Physical SocietyPhysical Review B, 83,   2011
  • Lattice dynamics and thermodynamic properties of (Mg,Fe2+)SiO3 post-perovskite
    American Geophysical UnionJournal of Geophysical Research, accepted,   2011
  • Theoretical and experimental evidence for a new post-cotunnite phase of titanium dioxide with significant optical absorption
    American Physical SocietyPhysical Review Letters, accepted,   2011
  • Elasticity of subducted basaltic crust at the lower mantle pressures: Insights on the nature of deep mantle heterogeneity
    ElsevierPhysics of Earth and Planetary Interiors, accepted,   2011

Books etc

Awards & Honors

  •   2003 , Awards for Selected Paper, The Clay Science Society of Japan
  •   2003 , Awards for Young Scientist, The Japan Society of High Pressure Science
  •   2006 , New Hot Paper
  •   2004 , AGU Journal Highlights
  •   2009 , The Young Scientists' Prize, The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology
  •   2011 , JSPS Prize


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