• 文献标题:   Quantum transport in graphene p-n junctions with moire superlattice modulation
  • 文献类型:   Article
  • 作  者:   HU JN, RIGOSI AF, LEE JU, LEE HY, YANG YF, LIU CI, ELMQUIST RE, NEWELL DB
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   NIST
  • 被引频次:   2
  • DOI:   10.1103/PhysRevB.98.045412
  • 出版年:   2018

▎ 摘  要

We present simulations of quantum transport in graphene p-n junctions (pnJs) in which moire superlattice potentials are incorporated to demonstrate the interplay between pnJs and moire superlattice potentials. It is shown that the longitudinal and Hall resistivity maps can be strongly modulated by the pnJ profile, junction height, and moire potentials. Device resistance measurements are subsequently performed on graphene/hexagonalboron-nitride heterostructure samples with accurate alignment of crystallographic orientations to complement and support the simulation results.