• 文献标题:   Tunneling of Dirac fermions through magnetic barriers in graphene
  • 文献类型:   Article
  • 作  者:   MYOUNG N, IHM G
  • 作者关键词:   graphene, magnetic barrier, dirac fermion
  • 出版物名称:   PHYSICA ELOWDIMENSIONAL SYSTEMS NANOSTRUCTURES
  • ISSN:   1386-9477 EI 1873-1759
  • 通讯作者地址:   Chungman Natl Univ
  • 被引频次:   19
  • DOI:   10.1016/j.physe.2009.09.001
  • 出版年:   2009

▎ 摘  要

We have studied the tunneling of Dirac fermions through magnetic barriers in graphene. Magnetic barriers are produced via delta function-like inhomogeneous magnetic fields in which Dirac fermions in graphene experience the tunneling barrier in the real sense in contrast to Klein paradox caused by electrostatic barriers. The transmission through the magnetic barriers as functions of incident energy and angle of incoming fermions shows characteristic oscillations associated with tunneling resonances. We have also found the confined states in the magnetic barrier region which turn out to correspond to the total internal reflection in the usual optics. (C) 2009 Elsevier B.V. All rights reserved.