Pressure-cycling induced transition behaviors of MnBi2Te4

Jie Wu; Yan Feng; Yifeng Ren; Ziyou Zhang; Yanping Yang; Xinyao Wang; Fuhai Su; Hongliang Dong; Yang Lu; Xiaojun Zhang; Yu Deng; Bin Xiang; Zhiqiang Chen

doi:10.1063/5.0184624

Pressure-cycling induced transition behaviors of MnBi2Te4

J Chem Phys. 2024 Jan 21;160(3):034707. doi: 10.1063/5.0184624.

Authors

Jie Wu^{1

2}, Yan Feng³, Yifeng Ren², Ziyou Zhang¹, Yanping Yang¹, Xinyao Wang^{4

5}, Fuhai Su⁵, Hongliang Dong¹, Yang Lu¹, Xiaojun Zhang⁶, Yu Deng², Bin Xiang³, Zhiqiang Chen¹

Affiliations

¹ Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China.
² National Laboratory of Solid State Microstructure, School of Physics, Nanjing University, Nanjing 210093, China.
³ Department of Materials Science and Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230026, China.
⁴ University of Science and Technology of China, Hefei 230026, China.
⁵ Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China.
⁶ Arrayed Materials (China) Co., Ltd., Shenzhen 518000, China.

PMID: 38235798
DOI: 10.1063/5.0184624

Abstract

MnBi2Te4 can generate a variety of exotic topological quantum states, which are closely related to its special structure. We conduct comprehensive multiple-cycle high-pressure research on MnBi2Te4 by using a diamond anvil cell to study its phase transition behaviors under high pressure. As observed, when the pressure does not exceed 15 GPa, the material undergoes an irreversible metal-semiconductor-metal transition, whereas when the pressure exceeds 17 GPa, the layered structure is damaged and becomes irreversibly amorphous due to the lattice distortion caused by compression, but it is not completely amorphous, which presents some nano-sized grains after decompression. Our investigation vividly reveals the phase transition behaviors of MnBi2Te4 under high pressure cycling and paves the experimental way to find topological phases under high pressure.