• 文献标题:   Voltage-driven quantum oscillations of conductance in graphene
  • 文献类型:   Article
  • 作  者:   YAMPOL SKII VA, APOSTOLOV SS, MAIZELIS ZA, LEVCHENKO A, NORI F
  • 作者关键词:  
  • 出版物名称:   EPL
  • ISSN:   0295-5075 EI 1286-4854
  • 通讯作者地址:   Inst Phys Chem Res RIKEN
  • 被引频次:   5
  • DOI:   10.1209/0295-5075/96/67009
  • 出版年:   2011

▎ 摘  要

Locally-gated single-layer graphene sheets have unusual discrete energy states inside the potential barrier induced by a finite-width gate. These states are localized outside the Dirac cone of continuum states and are responsible for novel quantum transport phenomena. Specifically, the longitudinal (along the barrier) conductance exhibits oscillations as a function of barrier height and/or width, which are both controlled by a nearby gate. The origin of these oscillations can be traced back to singularities in the density of localized states. These graphene conductance-oscillations resemble the Shubnikov-de Haas (SdH) magneto-oscillations, however, here these are driven by an electric field instead of a magnetic field. Copyright (C) EPLA, 2011