Topological Phase Transition in 2D 1T′-WSTe

被引：3

作者：

Li, Jiabin ^{[1
]}

Zhou, Pan ^{[2
]}

Zou, Zhengchun ^{[2
]}

Tan, Rui ^{[2
]}

Sun, Lizhong ^{[2
]}

Zhang, Kaiwang ^{[1
]}

机构：

[1] Xiangtan Univ, Sch Phys & Optoelect, Key Lab Micronano Energy Mat & Devices, Xiangtan 411105, Peoples R China

[2] Xiangtan Univ, Sch Mat Sci & Engn, Hunan Prov Key Lab Thin Film Mat & Devices, Xiangtan 411105, Peoples R China

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2020年 / 257卷 / 09期

基金：

中国国家自然科学基金;

关键词：

topological phase transition; uniaxial strain; 2D topological insulators; TOTAL-ENERGY CALCULATIONS; SPIN HALL INSULATOR; QUANTUM; SCHEMES; STATE;

D O I：

10.1002/pssb.202000010

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The topological phase transition between normal and topological insulators is essential in topological mechanism analysis and search for new topological materials. Herein, on the basis of the well-known monolayer 2D topological insulator 1T '-WTe2, a new 2D material 1T '-WSTe is constructed. It is a typical central inversion asymmetric 2D topological insulator. The fascinating feature of this material is that its low-energy electronic structure is very similar to the inversion broken topological phase transition point. The first-principles calculations reveal that the +/- 4% uniaxial strain can effectively turn the 2D material into topological insulator or normal insulator phases.

引用

页数：5

共 33 条

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