• 文献标题:   Band structure and transport property of graphene/h-BN heterostructure under local potentials
  • 文献类型:   Article
  • 作  者:   LI X, XU L, ZHANG J
  • 作者关键词:   graphene/hbn heterostructure, local potential, landau level
  • 出版物名称:   CHINESE JOURNAL OF PHYSICS
  • ISSN:   0577-9073
  • 通讯作者地址:   Xinjiang Univ
  • 被引频次:   0
  • DOI:   10.1016/j.cjph.2020.02.011
  • 出版年:   2020

▎ 摘  要

We investigate band structure and transport property of lattice-matched graphene/hexagonal boron nitride (h-BN) heterostructure using the tight-binding approach. It shows that local potentials can significantly modify the band structure and the transport property. A method to individually manipulate the edge states by local potentials is proposed, including shifts and other deformations of edge bands. The two-terminal conductance of each layer is quantized but the interlayer conductance is non-quantized due to band mixing. In addition, we explore the Landau level spectrum in graphene/h-BN nanoribbons under both magnetic field and local potentials. The plateaus-like behavior of the interlayer conductance is observed.