Study on pressure-induced isostructural phase transition and electrical transport properties of BiOBr

被引：1
|
作者：
Zhang, Xiaotong [1 ]
Gao, Yang [2 ,3 ]
Xing, Zhenfang [1 ]
Peng, Di [2 ]
Han, Yonghao [1 ]
机构：
[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
[2] Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China
[3] Shanghai Inst Laser Plasma, Shanghai 200000, Peoples R China
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2023年 / 25卷 / 29期
基金：
中国国家自然科学基金;
关键词：
Bromine compounds - Crystal structure;
D O I：
10.1039/d3cp02084c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, we prepared a BiOBr powder sample by the coprecipitation method for in situ high-pressure AC impedance spectroscopy tests, in situ high-pressure Raman measurements and in situ high-pressure X-ray diffraction experiments to explore its structural properties and electrical transport processes under compression. Two pressure-driven isostructural phase transitions, T-T & PRIME; and T & PRIME;-T & PRIME;& PRIME; (T - tetragonal, T & PRIME; - tetragonal 1 and T & PRIME;& PRIME; - tetragonal 2), were discovered at around 10.0 and 15.0 GPa, respectively. The pressure-induced changes in the crystal structure and electrical transport of BiOBr can provide a reference for explaining the mechanism of the isostructural phase transition of other similar compounds after compression.
引用
收藏
页码：19606 / 19611
页数：6
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