首页|Classification of spin Hall effect in two-dimensional systems

Classification of spin Hall effect in two-dimensional systems

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Physical properties such as the conductivity are usually classified according to the symmetry of the underlying system using Neumann's principle,which gives an upper bound for the number of independent components of the corresponding property tensor.However,for a given Hamiltonian,this global approach usually can not give a definite answer on whether a physical effect such as spin Hall effect(SHE)exists or not.It is found that the parity and types of spin-orbit interactions(SOIs)are good indicators that can further reduce the number of independent components of the spin Hall conductivity for a specific system.In terms of the parity as well as various Rashba-like and Dresselhaus-like SOIs,we propose a local approach to classify SHE in two-dimensional(2D)two-band models,where sufficient conditions for identifying the existence or absence of SHE in all 2D magnetic point groups are presented.

spin Hall effectsymmetrytwo-dimensional system

Longjun Xiang、Fuming Xu、Luyang Wang、Jian Wang

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College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,China

Quantum Science Center of Guangdong-Hongkong-Macao Greater Bay Area(Guangdong),Shenzhen 518045,China

Department of Physics,The University of Hong Kong,Pokfulam Road,Hong Kong,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaGuangdong Basic and Applied Basic Research FoundationShenzhen Natural Science Fund

1203401412174262120044422021B1515130007the Stable Support Plan Program 20220810130956001

2024

10.1007/s11467-023-1358-3

物理学前沿
高等教育出版社

物理学前沿

CSTPCD
影响因子：0.816
ISSN：2095-0462
年,卷(期)：2024.19(3)
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