Hall Conductivity in the Cosmic Defect and Dislocation Spacetime  

作　　者：马凯 王剑华 杨焕雄 樊华伟 

机构地区：[1]School of Physics Science,Shaanxi University of Technology [2]Interdisciplinary Center for Theoretical Study,University of Science and Technology of China [3]School of Physics and Information Technology,Shaanxi Normal University

出　　处：《Chinese Physics Letters》2016年第10期7-10,共4页中国物理快报（英文版）

基　　金：Supported by the China Scholarship Council under Grant No 201207010002;the Hanjiang Scholar Project of Shaanxi University of Technology;the National Natural Science Foundation of China under Grant No 11147181;the Scientific Research Project of Shaanxi Province under Grant Nos 2009K01-54 and 12JK0960;the Startup Foundation of the University of Science and Technology of China;the Project of Knowledge Innovation Program of the Chinese Academy of Sciences

摘　　要：Influences of topological defect and dislocation on conductivity behavior of charge carriers in external electromagnetic fields are studied. Particularly the quantum Hall effect is investigated in detail. It is found that the nontrivial deformations of spacetime due to topological defect and dislocation produce an electric current at the leading order of perturbation theory. This current then induces a deformation on the Hall conductivity. The corrections on the Hall conductivity depend on the external electric fields, the size of the sample and the momentum of the particle.Influences of topological defect and dislocation on conductivity behavior of charge carriers in external electromagnetic fields are studied. Particularly the quantum Hall effect is investigated in detail. It is found that the nontrivial deformations of spacetime due to topological defect and dislocation produce an electric current at the leading order of perturbation theory. This current then induces a deformation on the Hall conductivity. The corrections on the Hall conductivity depend on the external electric fields, the size of the sample and the momentum of the particle.

关 键 词：Hall Conductivity in the Cosmic Defect and Dislocation Spacetime on IS of in 

分 类 号：O483[理学—固体物理]