Hexagonal warping effect in the Janus group-VIA binary monolayers with large Rashba spin splitting and piezoelectricity

Author:

Chen Shao-Bo12ORCID,Guo San-Dong3ORCID,Yan Wan-Jun1ORCID,Zeng Zhao-Yi4,Xu Mei5,Chen Xiang-Rong2,Geng Hua-Yun6

Affiliation:

1. College of Electronic and Information Engineering, Anshun University, Anshun 561000, People's Republic of China

2. College of Physics, Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People's Republic of China

3. School of Electronic Engineering, Xian University of Posts and Telecommunications, Xian 710121, People's Republic of China

4. College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, People's Republic of China

5. School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550025, People's Republic of China

6. National Key Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, People's Republic of China

Abstract

Based on the k·p model, at a small constant energy surface, the Rashba spin splitting has a linear relationship with momentum k, while Hexagonal warping effect and a nonzero spin projection component Sz arise at a larger constant energy surface due to nonlinear k3 terms.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Chongqing

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

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