Pressure effect on structure transition and optical anisotropy in MoO3

被引：4

作者：

Xie, Shiyu ^{[1
]}

Cheng, Xuerui ^{[2
]}

Hu, Chuansheng ^{[1
]}

Zhang, Zhenghao ^{[1
]}

Zhang, Huanyu ^{[1
]}

Liu, Hengjie ^{[1
]}

Qi, Zeming ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China

[2] Zhengzhou Univ Light Ind, Sch Phys & Elect Engn, Zhengzhou 450002, Henan, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2022年 / 120卷 / 13期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

ALPHA-MOO3; MOBILITY;

D O I：

10.1063/5.0089315

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the phase transition and anisotropic optical property of MoO3 under pressure by optical spectroscopy. An alpha-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-O-2-Mo symmetric stretching mode moves from 90 degrees to 105 degrees then back to 90 degrees with pressure. The result is helpful to understand the mechanism of the pressure-induced phase transition and tune the anisotropic optical properties of MoO3. Published under an exclusive license by AIP Publishing.

引用

页数：6

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