• 文献标题:   Conductance of a disordered graphene superlattice
  • 文献类型:   Article
  • 作  者:   ABEDPOUR N, ESMAILPOUR A, ASGARI R, TABAR MRR
  • 作者关键词:   electrical conductivity, graphene, quasiparticle, shortrange order, superlattice
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   Sharif Univ Technol
  • 被引频次:   64
  • DOI:   10.1103/PhysRevB.79.165412
  • 出版年:   2009

▎ 摘  要

We study the conductance of disordered graphene superlattices with short-range structural correlations. The system consists of electron- and hole-doped graphenes of various thicknesses, which fluctuate randomly around their mean value. The effect of the randomness on the probability of transmission through the system of various sizes is studied. We show that in a disordered superlattice the quasiparticle that approaches the barrier interface almost perpendicularly transmits through the system. The conductivity of the finite-size system is computed and shown that the conductance vanishes when the sample size becomes very large, whereas for some specific structures the conductance tends to a nonzero value in the thermodynamic limit.