• 文献标题:   Inter-Well Coupling and Resonant Tunneling Modes of Multiple Graphene Quantum Wells
  • 文献类型:   Article
  • 作  者:   AN LP, WANG TB, LIU NH
  • 作者关键词:   graphene superlattice, quantum well, resonant tunneling mode, interwell coupling, transfer matrix
  • 出版物名称:   COMMUNICATIONS IN THEORETICAL PHYSICS
  • ISSN:   0253-6102 EI 1572-9494
  • 通讯作者地址:   Nanchang Univ
  • 被引频次:   2
  • DOI:   10.1088/0253-6102/56/2/29
  • 出版年:   2011

▎ 摘  要

We investigate the inter-well coupling of multiple graphene quantum well structures consisting of graphene superlattices with different periodic potentials. The general form of the eigenlevel equation for the bound states of the quantum well is expressed in terms of the transfer matrix elements. It is found that the electronic transmission exhibits resonant tunneling peaks at the eigenlevels of the bound states and shifts to the higher energy with increasing the incident angle. If there are N coupled quantum wells, the resonant modes have N-fold splitting. The peaks of resonant tunneling can be controlled by modulating the graphene barriers.