明治大学理工学部物理学科・理工学研究科物理学専攻地球内部物理研究室 (新名研究室)

日本語 / English

PUBLICATIONS


国際学術誌論文(査読あり)


  1. Sinmyo R., Kawaguchi-Imada S., Sato R., Otsuru K., Kawai K., Sakuma H., Suehara S., Ishii T., Maitani S. (2026) Cold SiO2-rich slabs reaching the CMB revealed by the seifertite phase boundary. Scientific Reports. https://doi.org/10.1038/s41598-026-54731-6
  2. Maitani S., Sinmyo R., Higuchi H., Ikeda-Fukazawa T., Kawaguchi-Imada S. (2025) Compressibility of single-crystal zircon up to 19 GPa: implications for the partitioning coefficient of trace elements. European Journal of Mineralogy. 37, 257-267; https://doi.org/10.5194/ejm-37-257-2025
  3. Ishii T., Sinmyo R., Katsura T. (2024) Synthesis and crystal structure of ilmenite-type silicate with pyrope composition. Solids. 5(3), 394-403; https://doi.org/10.3390/solids5030026
  4. Maitani S., Sinmyo R., Ishii T., Yoza K. (2024) Inert structural transition in 4H and 6H SiC at high pressure and temperature: A Raman spectroscopy study. Journal of Physics Communications. 8 (6), 065001, https://doi.org/10.1088/2399-6528/ad5410
  5. Kawaguchi SI., Sinmyo R., Ohta K., Kawaguchi S., and Kobayashi T. (2024) Submillisecond in situ X-ray diffraction measurement during changing temperature and pressure using diamond anvil cells at beamline BL10XU of SPring-8. Journal of Synchrotron Radiation. 31, 343-354
  6. Harada G., Sinmyo R., Maitani S., Watanabe T., Hojamberdiev M., Suzuki K., Wagata H. (2023) Growth of Submillimeter SrTaO2N Single Crystals by an NH3-Assisted SrCl2 Flux Method. Dalton Transactions. 52, 13895-13905
  7. Maitani S., Sinmyo R., Ishii T., Kawaguchi SI., Hirao N. (2022) The electrical conductivity of Fe4O5, Fe5O6, and Fe7O9 up to 60 GPa. Phys. Chem. Miner. 49, 11, https://doi.org/10.1007/s00269-022-01188-4
  8. Bindi L., Sinmyo R., Bykova E., Ovsyannikov S.V., McCammon C., Kupenko I., Ismailova L., Dubrovinsky L., Xie X. (2021) Discovery of elgoresyite, (Mg,Fe)5Si2O9: Implications for novel iron-magnesium silicates in rocky planetary interiors. ACS Earth Space Chem. https://doi.org/10.1021/acsearthspacechem.1c00157
  9. Okuda Y., Ohta K., Sinmyo R., Hirose K., Ohishi Y. (2020) Anomalous compressibility in (Fe,Al)-bearing bridgmanite: implications for the spin state of iron. Phys. Chem. Miner. 47, 40, https://doi.org/10.1007/s00269-020-01109-3
  10. Nakajima Y., Kawaguchi S.I., Hirose K., Tateno S., Kuwayama Y., Sinmyo R., Ozawa H., Tsutsui S., Uchiyama H., Baron A.Q.R. (2020) Silicon-depleted present-day Earth’s outer core revealed by sound velocity measurements of liquid Fe-Si alloy. J. Geophys. Res., 125, e2020JB019399, https://doi.org/10.1029/2020JB019399
  11. Ishii T., Miyajima N., Sinmyo R., Boffa Ballaran T., Kojitani H., Mori D., Inaguma Y., Akaogi M. (2020) Discovery of new-structured post-spinel MgFe2O4: Crystal structure and high-pressure phase relations. Geophys. Res. Lett., 47, e2020GL087490, https://doi.org/10.1029/2020GL087490
  12. Spiekermann G., Kupenko I., Petitgirard S., Harder M., Nyrow A., Weis C., Albers C., Biedermann N., Libon L., Sahle C., Cerantola V., Glazyrin K., Sinmyo R., Konôpková Z., Morgenroth W., Sergueev I., Yavaş H., Dubrovinsky L., Tolan M., Sternemann C., Wilke M. (2020) A portable on-axis laser heating system for near-90˚ X-ray spectroscopy: Application to ferropericlase and iron silicide. J. Synchrotron Radiat., 27, 414-424
  13. Sinmyo R., Nakajima Y., McCammon CA., Miyajima N., Petitgirard S., Myhill R., Dubrovinsky L., Frost DJ. (2019) Effect of Fe3+ on the phase relations under lower mantle: implications for redox melting in the stagnant slabs. J. Geophys. Res. DOI:10.1029/2019JB017704
  14. Hikosaka K., Sinmyo R., Hirose K., Ishii T., Ohishi Y. (2019) The stability of Fe5O6 and Fe4O5 at high pressure and temperature. Am. Mineral. (Letter) 104, 1356-1359
  15. Okuda Y., Ohta K., Sinmyo R., Hirose K., Yagi T., Ohishi Y. (2019) Effect of spin transition of iron on the thermal conductivity of (Fe, Al)-bearing bridgmanite. Earth Planet. Sci. Lett. 520, 188-198
  16. Hirose K., Tagawa S., Sinmyo R., Morard G., Ohishi Y., Genda H. (2019) Hydrogen Limits Carbon in Liquid Iron. Geophys. Res. Lett. 46, 5190-5197
  17. Yokoo S., Hirose K., Sinmyo R. (2019) Melting experiments on liquidus phase relations in the Fe-S-O ternary system under core pressures. Geophys. Res. Lett. 46, 5137-5145
  18. Mashino I., Miozzi F., Hirose K., Morard G., Sinmyo R. (2019) Melting experiments on the Fe-C binary system up to 255 GPa: Constraints on the carbon content in the Earth's core. Earth Planet. Sci. Lett. 515, 135-144.
  19. Kusakabe M., Hirose K., Sinmyo R., Kuwayama Y., Ohishi Y., Helffrich G. (2019) Melting curve and equation of state of β-Fe7N3: Nitrogen in the core?. J. Geophys. Res., DOI:10.1029/2018JB015823
  20. Komabayashi T., Pesce G., Sinmyo R., Kawazoe T., Breton H., Shimoyama Y., Glazyrin K., Konôpková Z., Mezouar M. (2019) Phase relations in the system Fe-Ni-Si to 200 GPa and 3900 K and implications for Earth’s core. Earth Planet. Sci. Lett. 512, 83-88.
  21. Sinmyo R., Hirose K., Ohishi Y. (2019) Melting curve of iron to 290 GPa determined in a resistance-heated diamond-anvil cell. Earth Planet. Sci. Lett. 510, 45-52.
  22. Komabayashi T., Pesce G., Morard G., Antonangeli D., Sinmyo R., Mezouar M. (2019) Phase transition boundary between fcc and hcp structures in Fe-Si alloy and its implications for terrestrial planetary cores. Am. Mineral. 104, 94-99. DOI: https://doi.org/10.2138/am-2019-6636
  23. Ozawa K., Anzai M., Hirose K., Sinmyo R. Tateno S. (2018) Experimental determination of eutectic liquid compositions in the MgO-SiO2 system to the lowermost mantle pressures. Geophys. Res. Lett. 45, 9552-9558. DOI: https://doi.org/10.1029/2018GL079313
  24. Tateno S., Hirose K., Sinmyo R., Morard G., Hirao N., Ohishi Y. (2018) Melting experiments on Fe-Si-S alloys to core pressures: Silicon in the core? Am. Mineral. 103, 742-748
  25. Vasiukov D.M., Ismailova L., Kupenko I., Cerantola V., Sinmyo R., Glazyrin K., McCammon C., Chumakov A.I., Dubrovinsky L., Dubrovinskaia N. (2017) Sound velocities of skiagite-iron-majorite solid solution to 56 GPa probed by nuclear inelastic scattering. Phys. Chem. Miner. DOI: https://doi.org/10.1007/s00269-017-0928-8
  26. Hirose K., Sinmyo R., Hernlund J. (2017) Perovskite in Earth’s deep interior. Science.358, 734-738
  27. Okuda Y., Ohta K., Yagi T., Sinmyo R., Wakamatsu T., Hirose K., Ohishi Y. (2017) The effect of iron and aluminum incorporation on lattice thermal conductivity of bridgmanite at the Earth’s lower mantle. Earth Planet. Sci. Lett. 474, 25-31
  28. Glazyrin K., Sinmyo R., Bykova E., Bykov M., Cerantola V., Longo M., McCammon C., Prakapenka V., Dubrovinsky L. (2017) Critical behavior of Mg1-xFexO at the pressure induced iron spin state crossover. Phys. Rev. B. 95, 214412
  29. Ishii T., Sinmyo R., Komabayashi T., Boffa Ballaran T., Kawazoe T., Miyajima N., Hirose K., Katsura T. (2017) Synthesis and crystal structure of LiNbO3-type Mg3Al2Si3O12: A possible indicator of shock conditions of meteorites. Am. Mineral. 102, 1947-1952
  30. Mori Y., Ozawa H., Hirose K., Sinmyo R., Tateno S., Morard G., Ohishi Y. (2017) Melting experiments on Fe-Fe3S system to 254 GPa. Earth Planet. Sci. Lett. 464, 135-141
  31. Hirose K., Morard G., Sinmyo R., Umemoto K., Hernlund J., Helffrich G., Labrosse S. (2017) Crystallization of silicon dioxide and compositional evolution of the Earth’s core. Nature. 543, 99-102
  32. Sinmyo R., McCammon C., Dubrovinsky L. (2017) The spin state of Fe3+ in lower mantle bridgmanite. Am. Mineral. 102, 1263-1269. doi:10.2138/am-2017-5917
  33. Sinmyo R., Keppler H. (2017) Electrical conductivity of NaCl-bearing aqueous fluids to 600˚C and 1 GPa. Contributions to Mineralogy and Petrology. 172:4. doi:10.1007/s00410-016-1323-z
  34. Sinmyo R., Bykova E., Ovsyannikov S.V., McCammon C., Kupenko I., Ismailova L., Dubrovinsky L. (2016) Discovery of Fe7O9: a new iron oxide with a complex monoclinic structure. Scientific Reports. 6, 32852; doi: 10.1038/srep32852
  35. Ismailova L., Bykova E., Bykov M., Cerantola V., McCammon C., Boffa Balaran T., Bobrov A., Sinmyo R., Dubrovinskaia N., Glazyrin K., Liermann H.-P., Kupenko I., Hanfland M., Prescher C., Prakapenka V., Svitlyk V., Dubrovinsky L. (2016) Stability of Fe,Al-bearing bridgmanite in the lower mantle and synthesis of pure Fe-bridgmanite. Science Advances. 2, e1600427, DOI: 10.1126/sciadv.1600427
  36. McCammon C., Caracas R., Glazyrin K., Potapkin V., Kantor A., Sinmyo R., Prescher C., Kupenko I., Chumakov A., Dubrovinsky L. (2016) Sound velocities of bridgmanite from density of states determined by nuclear inelastic scattering and first principles calculations. Progress in Earth and Planetary Science. 3:10, DOI: 10.1186/s40645-016-0089-2
  37. Petitgirard S., Malfait W., Sinmyo R., Kupenko I., Hennet L., Harries D., Dane T., Burghammer M., Rubie D.C. (2015) Fate of MgSiO3 melts at core-mantle boundary conditions. Proc. Natl. Acad. Sci. USA. 112, 14186–14190 doi:10.1073/pnas.1512386112
  38. Kupenko I., McCammon C., Sinmyo R., Cerantola V., Potapkin V., Chumakov A.I., Kantor A., Ruffer R., Dubrovinsky L. (2015) Oxidation state of the lower mantle: in situ observations of the iron electronic configuration in bridgmanite at extreme conditions. Earth Planet. Sci. Lett. 423, 78-86
  39. Prescher C., Dubrovinsky L., Bykova E., Kupenko I., Glazyrin K., Kantor A., McCammon C., Mookherjee M., Nakajima Y., Miyajima N., Sinmyo R., Cerantola V., Dubrovinskaia N., Prakapenka V., Ruffer R., Chumakov A., Hanfland M. (2015) High Poisson's ratio of Earth's inner core explained by carbon alloying. Nature Geoscience, 8, 220-223
  40. Sinmyo R., Pesce G., Greenberg E., McCammon C., Dubrovinsky L. (2014) Lower mantle electrical conductivity based on measurements of Al, Fe-bearing perovskite under lower mantle conditions. Earth Planet. Sci. Lett., 393, 165-172
  41. Sinmyo R., Glazyrin K., McCammon C., Kupenko I., Kantor A., Potapkin V., Chumakov A.I., Rüffer R., Dubrovinsky L. (2014) The influence of solid solution on elastic wave velocity determination in (Mg,Fe)O using nuclear inelastic scattering. Phys. Earth Planet. Inter. 229, 16-23
  42. Kupenko I., McCammon C., Sinmyo R., Prescher C., Chumakov A.I., Kantor A., Rüffer R., Dubrovinsky L. (2014) Electronic spin state of Fe,Al-containing MgSiO3 perovskite at lower mantle conditions. Lithos, 189, 167-172
  43. Sinmyo R., Bykova E., McCammon C., Kupenko I., Potapkin V., Dubrovinsky L. (2014) Crystal chemistry of Fe3+-bearing (Mg,Fe)SiO3 perovskite: A single-crystal X-ray diffraction study. Phys. Chem. Miner., 41, 409-417
  44. Prescher C., Weigel C., McCammon C., Narygina O., Potapkin V., Kupenko I., Sinmyo R., Chumakov A.I., Dubrovinsky L. (2014) Iron spin state in silicate glass at high pressure: implications for melts in the Earth’s lower mantle. Earth Planet. Sci. Lett., 385, 130-136
  45. McCammon C., Glazyrin K., Kantor A., Kantor I., Kupenko I., Narygina O., Potapkin V., Prescher C., Sinmyo R., Chumakov A., Rüffer R., Sergueev I., Smirnov G., Dubrovinsky L. (2013) Iron spin state in silicate perovskite at conditions of the Earth’s deep interior. High Pressure Res., 33, DOI: 10.1080/08957959.2013.805217
  46. Potapkin V., McCammon C., Glazyrin K., Kantor A., Kupenko I., Prescher C., Sinmyo R., Smirnov G.V., Chumakov A.I., Rüffer R., Dubrovinsky L. (2013) Effect of iron oxidation state on the electrical conductivity of the Earth’s lower mantle. Nature Communications, 4, 1427
  47. Sinmyo R., Hirose K. (2013) Iron partitioning in pyrolitic lower mantle. Phys. Chem. Miner., 40, 107-113
  48. Kupenko I., Dubrovinsky L., Dubrovinskaia N., McCammon C., Glazyrin K., Bykova E., Boffa Ballaran T., Sinmyo R., Chumakov A.I., Potapkin V., Kantor A., Rüffer R., Hanfland M., Crichton W., Merlini M. (2012) Portable double-sided laser-heating system for energy-domain Mössbauer spectroscopy and single crystal X-ray diffraction experiments at synchrotron facilities with diamond anvil cells. Rev. Sci. Instrum., 83, DOI: 10.1063/1.4772458
  49. Sinmyo R., Hirose K., Muto S., Ohishi Y., Yasuhara A. (2011) The valence state and partitioning of iron in the Earth’s lowermost mantle. J. Geophys. Res., 116, B07205, DOI: 10.1029/2010JB008179
  50. Sinmyo R., Hirose K. (2010) The Soret diffusion in laser-heated diamond-anvil cell. Phys. Earth Planet. Inter, 180, 172-178, DOI: 10.1016/j.pepi.2009.10.011
  51. Tateno S., Sinmyo R., Hirose K., Nishioka H. (2009) The advanced ion-milling method for preparation of thin film using ion slicer: Application to a sample recovered from diamond-anvil cell. Rev. Sci. Instrum., 80, DOI: 10.1063/1.3058760
  52. Ohta K., Onoda S., Hirose K., Sinmyo R., Shimizu K., Sata N., Ohishi Y., Yasuhara A. (2008) The electrical conductivity of post-perovskite in Earth's D" layer. Science, 320, 89-91
  53. Sinmyo R., Hirose K., Nishio-Hamane D., Seto Y., Fujino K., Sata N., Ohishi Y. (2008) Partitioning of iron between perovskite/postperovskite and ferropericlase in the lower mantle. J. Geophys. Res., 113, B11204, DOI: 10.1029/2008JB005730
  54. Sinmyo R., Ozawa H., Hirose K., Yasuhara A., Endo N., Sata N., Ohishi Y. (2008) Ferric iron content in (Mg,Fe)SiO3 perovskite and post-perovskite at deep lower mantle conditions. Am. Mineral., 93, 1899-1902
  55. Hirose K., Sinmyo R., Sata N., Ohishi Y. (2006) Determination of post-perovskite phase transition boundary in MgSiO3 using Au and MgO pressure standards. Geophys. Res. Lett., L01310, DOI: 10.1029/2005GL024468
  56. Sinmyo R., Hirose K., O'Neill H.S., Okunishi E. (2006) Ferric iron in Al-bearing post-perovskite. Geophys. Res. Lett., L12S13, DOI: 10.1029/2006GL025858

国際学術書籍


Sinmyo R., Nakajima Y., Kuwayama Y. (2023) Recent progress in the high-pressure experiments on the composition of the core. In Core-Mantle Coevolution: A Multidisciplinary approach AGU books. American Geophysical Union, Washington, D.C.


国内学術誌


太田健二, 廣瀬敬, 新名良介, 小野田朱々江, 清水克哉 (2008) レーザー加熱式ダイヤモンドアンビルセルを用いた(Mg,Fe)SiO3ポストペロブスカイト相の電気伝導度測定. 高圧力の科学と技術, 第18号, 260-266.

新名良介, 廣瀬敬, 大石泰生 (2019) 内部抵抗加熱式ダイヤモンドアンビルセルを用いた鉄融点の決定. 高圧力の科学と技術, 第2号.

新名良介 (2019) 高温高圧実験を用いたマントル深部鉱物の物理・化学的性質の研究. 岩石鉱物科学, 第48巻


研究紹介記事


  1. “地球の奥深くに沈み込んだ海底の岩石を発見 — 実験・理論計算・地震観測を組み合わせ、プレートが核付近まで到達したことが明らかに —”, 明治大学広報ほか, 2026,
    https://www.meiji.ac.jp/koho/press/2026/qfki0t00000j8k4h.html
    https://prtimes.jp/main/html/rd/p/000000390.000119558.html
    https://newsdig.tbs.co.jp/articles/-/2722324
  2. “A Mineral Unknown On Earth Could Be The Most Common Mineral On Mars”, Forbes, 2021, https://www.forbes.com/sites/davidbressan/2021/08/09/a-mineral-unknown-on-earth-could-be-the-most-abundant-mineral-on-mars/?sh=21dc086e73b0
  3. “A cooler core for Earth”, Science, 2019, 36, 448-449

引用統計など（新名）


Scopus Author ID: 12760777100
https://www.scopus.com/authid/detail.uri?authorId=12760777100

Web of Science ResearcherID: M-9534-2019
https://publons.com/researcher/M-9534-2019/

ResearchMap
https://researchmap.jp/ryosuke_sinmyo/

ORCID: 0000-0001-5799-3400
https://orcid.org/0000-0001-5799-3400