• 文献标题:   Spectroscopy of snake states using a graphene Hall bar
  • 文献类型:   Article
  • 作  者:   MILOVANOVIC SP, MASIR MR, PEETERS FM
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Univ Antwerp
  • 被引频次:   14
  • DOI:   10.1063/1.4838557
  • 出版年:   2013

▎ 摘  要

An approach to observe snake states in a graphene Hall bar containing a pn-junction is proposed. The magnetic field dependence of the bend resistance in a ballistic graphene Hall bar structure containing a tilted pn-junction oscillates as a function of applied magnetic field. We show that each oscillation is due to a specific snake state that moves along the pn-interface. Furthermore, depending on the value of the magnetic field and applied potential, we can control the lead in which the electrons will end up and hence control the response of the system. (C) 2013 AIP Publishing LLC.