ID | 60823 |
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Author |
Kanzaki, Masami
Institute for Planetary Materials, Okayama University
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Abstract | The crystal structure of Ca(Fe3+0.4Si0.6)O2.8 oxygen-deficient perovskite phase synthesized at 12 GPa and 1400 °C was studied using synchrotron powder X-ray diffraction. The phase is isostructural to low-pressure phase of Ca(Al0.4Si0.6)O2.8. The structure was refined by the Rietveld method and is consists of a perovskite-like triple-layer of corner-shared (Fe3+,Si)O6 octahedra and a double-layer of SiO4 tetrahedra those are stacked alternatively in the [111] direction of ideal cubic perovskite. Small degree of Fe3+/Si disorder was detected between two octahedral sites. The structure is compared with other oxygen-deficient perovskites.
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Keywords | Crystal structure
Rietveld refinement
Oxygen-deficient perovskite
High-pressure silicate
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Published Date | 2020-10-1
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Publication Title |
Journal of the Ceramic Society of Japan
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Volume | volume128
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Issue | issue10
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Publisher | The Ceramic Society of Japan
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Start Page | 843
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End Page | 846
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ISSN | 1882-0743
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NCID | AA12229489
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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Copyright Holders | © 2020 The Ceramic Society of Japan
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File Version | publisher
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DOI | |
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Related Url | isVersionOf https://doi.org/10.2109/jcersj2.20138
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License | https://creativecommons.org/licenses/by-nd/4.0/
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