刚玉相关类Cu3TeO6的压力诱导结构相变

IF 1.2 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

High Pressure Research Pub Date : 2021-07-03 DOI:10.1080/08957959.2021.1975699

Jia Qu, Limin Yan, Hetian Liu, Q. Tao, P. Zhu, Zhihui Li, Xin Wang

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引用次数: 0

摘要

摘要利用同步辐射X射线衍射和拉曼光谱研究了Cu3TeO6的高压结构变化，分别高达23.2（4）和45.9（7）GPa。研究发现，Cu3TeO6在8.6（1）GPa左右从立方（Ia-3）结构转变为正交（Ibca）结构，并且相变是可逆的。由于两种晶体结构之间的相似性，相变是微妙的。大的内部晶格应变可能是压力诱导结构相变的原因。

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Pressure-induced structural phase transition in corundum-related class Cu3TeO6

ABSTRACT The high pressure structural changes of Cu3TeO6 have been investigated by using synchrotron radiation X-ray diffraction and Raman spectroscopy up to 23.2(4) and 45.9(7) GPa, respectively. It was found that Cu3TeO6 transformed from the cubic (Ia-3) structure to the orthorhombic (Ibca) structure around 8.6(1) GPa, and the phase transition was reversible. The phase transformation was subtle because of the similarity between two crystal structures. A large internal lattice strain could be the cause to the pressure-induced structural phase transition.

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来源期刊

High Pressure Research 物理-物理：综合

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

2 months

期刊介绍： High Pressure Research is the leading journal for research in high pressure science and technology. The journal publishes original full-length papers and short research reports of new developments, as well as timely review articles. It provides an important forum for the presentation of experimental and theoretical advances in high pressure science in subjects such as: condensed matter physics and chemistry geophysics and planetary physics synthesis of new materials chemical kinetics under high pressure industrial applications shockwaves in condensed matter instrumentation and techniques the application of pressure to food / biomaterials Theoretical papers of exceptionally high quality are also accepted.