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Collaborative Research

My multi-anvil techniques are also valuable in synthesizing high-quality high P-T samples. 

I am also interested in various investigations on these samples through various techniques, such as single-crystal X-ray and neutron diffraction, Raman, infrared, and Brillouin spectroscopy, transmission electron microscopy, X-ray inelastic scattering and absorption spectroscopy, nuclear magnetic resonance, secondary-ion mass spectrometry, micro-scanning calorimetry, and micro-indentation hardness and toughness measurement, in collaboration with excellent external researchers.

Please feel free to contact me, if you have an interest in collaborative work!

Past representative collaborative works

  1. T. Meier, F. Trybel, S. Khandarkhaeva, D. Laniel, T. Ishii, A. Aslandukova, N. Dubrovinskaia, L. Dubrovinsky (2022). Structural independence of hydrogen-bond symmetrisation dynamics at extreme pressure conditions. Nature Communications, 13, 1-8, 2022. DOI: https://doi.org/10.1038/s41467-022-30662-4

  2. A. B. Woodland, L. Uenver-Thiele, T. Boffa Ballaran, N. Miyajima, K. Rosbach, T. Ishii. Stability of Fe5O6 and its relation to other Fe-Mg-oxides at high pressures and temperatures. American Mineralogist, in press. DOI: https://doi.org/10.2138/am-2022-8370

  3. I. Koemets, T. Ishii, L. Dubrovinsky, M. Hanfland. Equations of state of α-SiC (6H) and β’-Mg2Si1.1 from single-crystal X-ray diffraction data and novel high-pressure magnesium silicide Mg2Si7. Physics and Chemistry of Minerals, 49, 2022. DOI: https://doi.org/10.1007/s00269-022-01189-3

  4. S. Maitani, R. Sinmyo, T. Ishii, S. I. Kawaguchi, N. Hirao. The electrical conductivity of Fe4O5, Fe5O6, and Fe7O9 up to 60 GPa. Physic and Chemistry of Minerals, 49, 2022. DOI: https://doi.org/10.1007/s00269-022-01188-4

  5. N. C. Siersch, G. Criniti, A. Kurnosov, T. B. Ballaran, Z. Liu, T. Ishii, D. J. Frost, T. Yu, Y. Wang. The influence of Al2O3 on the structural properties of MgSiO3 akimotoite. American Mineralogist, in press. DOI: https://doi.org/10.2138/am-2022-8257

  6. H. Tang, X. Yuan, Y. Cheng, H. Fei, F. Liu, T. Liang, Z. Zeng, T. Ishii, M.-S. Wang, T. Katsura, H. Sheng, H. Gou. Synthesis of Paracrystalline Diamond. Nature, 599, 605-610, 2021. DOI: https://doi.org/10.1038/s41586-021-04122-w

  7. N. Satta, G. Criniti, A. Kurnosov, T. B. Ballaran, T. Ishii, H. Marquardt. High‐pressure elasticity of δ‐(Al, Fe) OOH single crystals and seismic detectability of hydrous MORB in the shallow lower mantle. Geophysical Research Letters, e2021GL094185, 2021. https://doi.org/10.1029/2021GL094185

  8. T. Meier, A. Aslandukova, F. Trybel, D. Laniel, T. Ishii, S. Khandarkhaeva, N. Dubrovinskaia, L. Dubrovinsky. In situ high-pressure nuclear magnetic resonance crystallography in one and two dimensions. Matter and Radiation at Extremes, 6(6), 068402, 2021. DOI: https://doi.org/10.1063/5.0065879

  9. N. C. Siersch, A. Kurnosov, G. Criniti, T. Ishii, T. B. Ballaran, D. J. Frost. The elastic properties and anisotropic behavior of MgSiO3 akimotoite at transition zone pressures. Physics of the Earth and Planetary Interiors, 320, 106786, 2021. DOI: https://doi.org/10.1016/j.pepi.2021.106786

  10. J. Buchen, W. Sturhahn, T. Ishii, J, Jackson. Vibrational anisotropy of δ-(Al,Fe)OOH single crystals as probed by nuclear resonant inelastic X-ray scattering. European Journal of Mineralogy, 33(4), 485-502, 2021. https://doi.org/10.5194/ejm-33-485-2021

  11. X. Su, C. Zhao, L. Xu, C. Lv, X. Song, T. Ishii, Y. Xiao, P. Cho, Q. Sun, J. Liu. Spectroscopic evidence for the Fe3+ spin transition in iron bearing δ-AlOOH at high pressure. American Mineralogist, 106(11), 1709-1716, 2021. DOI: 10.2138/am-2021-7541

  12. E. Marzotto, W.P. Hsieh, T. Ishii, K.H. Chao, G.J Golabek, M. Thielmann, E. Ohtani. Effect of water on lattice thermal conductivity of ringwoodite and its implications for the thermal evolution of descending slabs. Geophysical Research Letters, 47(13), e2020GL087607, 2020. DOI: 10.1029/2020GL087607

  13. W. P. Hsieh, T. Ishii, K. H. Chao, J. Tsuchiya, F. Deschamps, E. Ohtani. Spin transition of iron in δ‐(Al, Fe) OOH induces thermal anomalies in Earth's lower mantle. Geophysical Research Letters, 47(4), e2020GL087036, 2020. DOI: 10.1029/2020GL087036

  14. K. Hikosaka, R. Sinmyo, K. Hirose, T. Ishii, Y. Ohishi, The stability of Fe5O6 and Fe4O5 at high pressure and temperature. American Mineralogist, 104(9), 1356-1359, 2019. DOI: 10.2138/am-2019-7097

  15. Z. Liu, T. Ishii, T. Katsura. Rapid decrease of MgAlO2.5 in bridgmanite with pressure. Geochemical Perspectives Letters, 5, 12-18, 2017. DOI: 10.7185/geochemlet.1739

  16. S. Rout, P.R. Heck, N. Zaluzec, T. Ishii, J. Wen, D. Miller, B. Schmitz. Shocked chromites in fossil L chondrites: A Raman spectroscopy and transmission electron microscopy study. Meteoritics and Planetary Science, 52, 1776-1796, 2017. DOI: 10.1111/maps.12887

  17. M. Akaogi, K. Abe, H. Yusa, T. Ishii, T. Tajima, H. Kojitani, D. Mori, Y. Inaguma. High-pressure high-temperature phase relations in FeTiO3 up to 35 GPa and 1600°C. Physics and Chemistry of Minerals, 44, 63-73, 2017. DOI: 10.1007/s00269-016-0836-3

  18. J.-G. Cheng, T. Ishii, H. Kojitani, K. Matsubayshi, A. Mastuo, X. Li, Y. Shirako, J.-S. Zhou, J. B. Goodenough, C. Q. Jin, M. Akaogi, Y. Uwatoko. High-pressure synthesis of the BaIrO3 perovskite: A Pauli paramagnetic metal with a Fermi liquid ground state. Physical Review B, 88, 205114, 2013. DOI: 10.1103/physrevb.88.205114

  19. H. Kojitani, T. Ishii, Masaki Akaogi. Thermodynamic investigation on phase equilibrium boundary between calcium ferrite-type MgAl2O4 and MgO + α-Al2O3. Physics of the Earth and Planetary Interiors, 212, 100-105, 2012. DOI: 10.1016/j.pepi.2012.10.002

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