Phase boundary between perovskite and post-perovskite structures in MnGeO3 determined by in situ X-ray diffraction measurements using sintered diamond anvils

Daisuke Yamazaki; Eiji Ito; Tomoo Katsura; Takashi Yoshino; Shuangmeng Zhai; Hiroshi Fukui; Anton Shatskiy; Xinzhuan Guo; Shuangming Shan; Takuo Okuchi; Yoshinori Tange; Yuji Higo; Ken Ichi Funakoshi

doi:10.2138/am.2011.3499

Phase boundary between perovskite and post-perovskite structures in MnGeO₃ determined by in situ X-ray diffraction measurements using sintered diamond anvils

Daisuke Yamazaki, Eiji Ito, Tomoo Katsura, Takashi Yoshino, Shuangmeng Zhai, Hiroshi Fukui, Anton Shatskiy, Xinzhuan Guo, Shuangming Shan, Takuo Okuchi, Yoshinori Tange, Yuji Higo, Ken Ichi Funakoshi

Institute for Planetary Materials

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

To determine the phase boundary between the perovskite and post-perovskite structures in MnGeO3, in situ X-ray observations were carried out at pressures of 57-68 GPa and temperatures of 1000-1900 K using the Kawai-type high-pressure apparatus equipped with sintered diamond anvils interfaced with synchrotron radiation. The phase boundary was determined to be P (GPa) = 39.2 + 0.013T (K) based on Tsuchiya's (2003) gold pressure scale. The Clapeyron slope, dP/dT, of 13(+12/-5) MPa/K, determined in the present study is larger that of MgGeO3 and MgSiO3.

Original language	English
Pages (from-to)	89-92
Number of pages	4
Journal	American Mineralogist
Volume	96
Issue number	1
DOIs	https://doi.org/10.2138/am.2011.3499
Publication status	Published - Jan 2011

Keywords

High pressure
In situ X-ray observation
Phase boundary
Post-perovskite

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

Access to Document

10.2138/am.2011.3499

Cite this

Yamazaki, D., Ito, E., Katsura, T., Yoshino, T., Zhai, S., Fukui, H., Shatskiy, A., Guo, X., Shan, S., Okuchi, T., Tange, Y., Higo, Y., & Funakoshi, K. I. (2011). Phase boundary between perovskite and post-perovskite structures in MnGeO₃ determined by in situ X-ray diffraction measurements using sintered diamond anvils. American Mineralogist, 96(1), 89-92. https://doi.org/10.2138/am.2011.3499

Yamazaki, D, Ito, E, Katsura, T, Yoshino, T, Zhai, S, Fukui, H, Shatskiy, A, Guo, X, Shan, S, Okuchi, T, Tange, Y, Higo, Y & Funakoshi, KI 2011, 'Phase boundary between perovskite and post-perovskite structures in MnGeO₃ determined by in situ X-ray diffraction measurements using sintered diamond anvils', American Mineralogist, vol. 96, no. 1, pp. 89-92. https://doi.org/10.2138/am.2011.3499

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abstract = "To determine the phase boundary between the perovskite and post-perovskite structures in MnGeO3, in situ X-ray observations were carried out at pressures of 57-68 GPa and temperatures of 1000-1900 K using the Kawai-type high-pressure apparatus equipped with sintered diamond anvils interfaced with synchrotron radiation. The phase boundary was determined to be P (GPa) = 39.2 + 0.013T (K) based on Tsuchiya's (2003) gold pressure scale. The Clapeyron slope, dP/dT, of 13(+12/-5) MPa/K, determined in the present study is larger that of MgGeO3 and MgSiO3.",

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author = "Daisuke Yamazaki and Eiji Ito and Tomoo Katsura and Takashi Yoshino and Shuangmeng Zhai and Hiroshi Fukui and Anton Shatskiy and Xinzhuan Guo and Shuangming Shan and Takuo Okuchi and Yoshinori Tange and Yuji Higo and Funakoshi, {Ken Ichi}",

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AU - Yamazaki, Daisuke

AU - Ito, Eiji

AU - Katsura, Tomoo

AU - Yoshino, Takashi

AU - Zhai, Shuangmeng

AU - Fukui, Hiroshi

AU - Shatskiy, Anton

AU - Guo, Xinzhuan

AU - Shan, Shuangming

AU - Okuchi, Takuo

AU - Tange, Yoshinori

AU - Higo, Yuji

AU - Funakoshi, Ken Ichi

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AB - To determine the phase boundary between the perovskite and post-perovskite structures in MnGeO3, in situ X-ray observations were carried out at pressures of 57-68 GPa and temperatures of 1000-1900 K using the Kawai-type high-pressure apparatus equipped with sintered diamond anvils interfaced with synchrotron radiation. The phase boundary was determined to be P (GPa) = 39.2 + 0.013T (K) based on Tsuchiya's (2003) gold pressure scale. The Clapeyron slope, dP/dT, of 13(+12/-5) MPa/K, determined in the present study is larger that of MgGeO3 and MgSiO3.

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