• 文献标题:   Tunable electronic transport characteristics through an AA-stacked bilayer graphene with magnetoelectric barriers
  • 文献类型:   Article
  • 作  者:   WANG DL, JIN GJ
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF APPLIED PHYSICS
  • ISSN:   0021-8979 EI 1089-7550
  • 通讯作者地址:   Anhui Normal Univ
  • 被引频次:   7
  • DOI:   10.1063/1.4751331
  • 出版年:   2012

▎ 摘  要

We study the electronic transport through an AA-stacked bilayer graphene with magnetic and electric barriers when an external electric field is applied perpendicularly to the graphene plane. The tunneling probability is found to be highly sensitive with respect to the incident angle of Dirac electrons, magnetic barrier strength, and biased potential between the two graphene layers. We also demonstrate that the electronic conductance across such a barrier structure can change from an oscillatory to a monotonically decaying function of the barrier width beyond a critical magnetic field, and further can be effectively modified by the electrical potential difference between the layers. It is possible to achieve conduction modulation in the AA-stacked bilayer graphene with configurable magnetoelectric barriers and to realize a field-induced switching by means of the combination of the magnetic and electric fields. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4751331]