High-pressure thermoelastic and structural properties of KCaF₃ perovskite in the low temperature Pbnm phase

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• 作者：Kevin S. Knight^a ; ^b ; ^c ; ^{kevinstevenknight@gmail.com}
• 关键词：Fluorides ; Neutron scattering ; Crystal structure ; Equations-of-state
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：693
• 期：Complete
• 页码：1305-1314
• 全文大小：1737 K
• 卷排序：693

文摘

Equation-of-state for KCaF3 perovskite reported for pressures up to 6.7 GPa. Self-consistent thermoelastic behaviour based on 2-term Debye model. Structural distortion increases with increasing pressure. No evidence for perovskite-perovskite or perovskite-postperovskite transitions.