• 文献标题:   Local gating of a graphene Hall bar by graphene side gates
  • 文献类型:   Article
  • 作  者:   MOLITOR F, GUTTINGER J, STAMPFER C, GRAF D, IHN T, ENSSLIN K
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   ETH
  • 被引频次:   50
  • DOI:   10.1103/PhysRevB.76.245426
  • 出版年:   2007

▎ 摘  要

We have investigated the magnetotransport properties of a single-layer graphene Hall bar with additional graphene side gates. The side gating in the absence of a magnetic field can be modeled by considering two parallel conducting channels within the Hall bar. This results in an average penetration depth of the side gate created field of approximately 90 nm. The side gates are also effective in the quantum Hall regime and allow to modify the longitudinal and Hall resistances.