• 文献标题:   Electron transmission through a periodically driven graphene magnetic barrier
  • 文献类型:   Article
  • 作  者:   BISWAS R, MAITI S, MUKHOPADHYAY S, SINHA C
  • 作者关键词:   graphene, magnetic barrier, oscillating field
  • 出版物名称:   PHYSICS LETTERS A
  • ISSN:   0375-9601 EI 1873-2429
  • 通讯作者地址:   PK Coll
  • 被引频次:   1
  • DOI:   10.1016/j.physleta.2017.02.045
  • 出版年:   2017

▎ 摘  要

Electronic transport through graphene magnetic barriers is studied theoretically in presence of an external time harmonic scalar potential in the framework of non-perturbative Landau-Floquet Formalism. The oscillating field mostly suppresses the transmission for rectangular magnetic barrier structure and exhibits the Fano resonance for multiphoton processes due to the presence of bound state inside the barrier. While, for a pair of delta function barriers of larger separation, the oscillating potential suppresses the usual Fabry-Perot oscillations in the transmission and a new type of asymmetric Fano resonance is noted for smaller separation, occurring due to extended states between the barriers. (C) 2017 Elsevier B.V. All rights reserved.