• 文献标题:   Conductivity of graphene on boron nitride substrates
  • 文献类型:   Article
  • 作  者:   DAS SARMA S, HWANG EH
  • 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:   Univ Maryland
  • 被引频次:   27
  • DOI:   10.1103/PhysRevB.83.121405
  • 出版年:   2011

▎ 摘  要

We calculate theoretically the disorder-limited conductivity of monolayer and bilayer graphene on hexagonal boron nitride (h-BN) substrates, comparing our theoretical results with the recent experimental results. The comparison leads to a direct quantitative estimate of the underlying disorder strength for both short-and long-range disorder in the graphene on the h-BN system. We find that the good interface quality between graphene and h-BN leads to strongly suppressed charged impurity scattering compared with the corresponding SiO2 substrate case, thus producing very high mobility for the graphene on the h-BN system.