Quantum anomalous Hall effect in real materials  

作　　者：张加永 赵宝 周通 杨中芹 

机构地区：[1]State Key Laboratory of Surface Physics and Key Laboratory for Computational Physical Sciences (MOE) & Department of Physics,Fudan University [2]Collaborative Innovation Center of Advanced Microstructures, Fudan University

出　　处：《Chinese Physics B》2016年第11期41-53,共13页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China(Grant No.2011CB921803);the National Natural Science Foundation of China(Grant No.11574051);the Natural Science Foundation of Shanghai,China(Grant No.14ZR1403400);Fudan High-end Computing Center,China

摘　　要：Under a strong magnetic field,the quantum Hall（QH） effect can be observed in two-dimensional electronic gas systems.If the quantized Hall conductivity is acquired in a system without the need of an external magnetic field,then it will give rise to a new quantum state,the quantum anomalous Hall（QAH） state.The QAH state is a novel quantum state that is insulating in the bulk but exhibits unique conducting edge states topologically protected from backscattering and holds great potential for applications in low-power-consumption electronics.The realization of the QAH effect in real materials is of great significance.In this paper,we systematically review the theoretical proposals that have been brought forward to realize the QAH effect in various real material systems or structures,including magnetically doped topological insulators,graphene-based systems,silicene-based systems,two-dimensional organometallic frameworks,quantum wells,and functionalized Sb（111） monolayers,etc.Our paper can help our readers to quickly grasp the recent developments in this field.Under a strong magnetic field,the quantum Hall（QH） effect can be observed in two-dimensional electronic gas systems.If the quantized Hall conductivity is acquired in a system without the need of an external magnetic field,then it will give rise to a new quantum state,the quantum anomalous Hall（QAH） state.The QAH state is a novel quantum state that is insulating in the bulk but exhibits unique conducting edge states topologically protected from backscattering and holds great potential for applications in low-power-consumption electronics.The realization of the QAH effect in real materials is of great significance.In this paper,we systematically review the theoretical proposals that have been brought forward to realize the QAH effect in various real material systems or structures,including magnetically doped topological insulators,graphene-based systems,silicene-based systems,two-dimensional organometallic frameworks,quantum wells,and functionalized Sb（111） monolayers,etc.Our paper can help our readers to quickly grasp the recent developments in this field.

关 键 词：systematically anomalous topological insulating hollow quickly doping realization permission bands 

分 类 号：O413[理学—理论物理] O469[理学—物理]