Pressure effect on structure transition and optical anisotropy in MoO3
Pressure effect on structure transition and optical anisotropy in MoO3
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DOI：
10.1063/5.0089315
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发表时间：
2022-03
影响因子：
4
通讯作者：
Shiyu Xie;Xuerui Cheng;Chuan-Shan Hu;Zhenghao Zhang;Huanyu Zhang;Hengjie Liu;Z. Qi
中科院分区：
文献类型：
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作者：
Shiyu Xie;Xuerui Cheng;Chuan-Shan Hu;Zhenghao Zhang;Huanyu Zhang;Hengjie Liu;Z. Qi
We investigated the phase transition and anisotropic optical property of MoO3 under pressure by optical spectroscopy. An α-MoO3 to MoO3-II transition and another MoO3-II to MoO3-III transition were observed at 11 and at 27 GPa, respectively. Accompanied by the structural transition, its optical anisotropy also changes with pressure. While maintaining the similar angle-resolved intensity patterns, the polarization angle with the maximum intensity of the Mo–O2–Mo symmetric stretching mode moves from 90° to 105° then back to 90° with pressure. The result is helpful to understand the mechanism of the pressure-induced phase transition and tune the anisotropic optical properties of MoO3.
