• 文献标题:   Monopole and topological electron dynamics in adiabatic spintronic and graphene systems
  • 文献类型:   Article
  • 作  者:   TAN SG, JALIL MBA, FUJITA T
  • 作者关键词:   berry curvature, magnetic monopole, topological electron dynamic
  • 出版物名称:   ANNALS OF PHYSICS
  • ISSN:   0003-4916
  • 通讯作者地址:   Natl Univ Singapore
  • 被引频次:   6
  • DOI:   10.1016/j.aop.2010.04.007
  • 出版年:   2010

▎ 摘  要

A unified theoretical treatment is presented to describe the physics of electron dynamics in semiconductor and graphene systems. Electron spin's fast alignment with the Zeeman magnetic field (physical or effective) is treated as a form of adiabatic spin evolution which necessarily generates a monopole in magnetic space. One could transform this monopole into the physical and intuitive topological magnetic fields in the useful momentum (K) or real spaces (R). The physics of electron dynamics related to spin Hall, torque, oscillations and other technologically useful spinor effects can be inferred from the topological magnetic fields in spintronic, graphene and other SU(2) systems. (C) 2010 Elsevier Inc. All rights reserved.