• 文献标题:   Measurement of topological Berry phase in highly disordered graphene
  • 文献类型:   Article
  • 作  者:   BENNACEUR K, GUILLEMETTE J, LEVESQUE PL, COTTENYE N, MAHVASH F, HEMSWORTH N, KUMAR A, MURATA Y, HEUN S, GOERBIG MO, PROUST C, SIAJ M, MARTEL R, GERVAIS G, SZKOPEK T
  • 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:   McGill Univ
  • 被引频次:   9
  • DOI:   10.1103/PhysRevB.92.125410
  • 出版年:   2015

▎ 摘  要

We have observed the quantum Hall effect (QHE) and Shubnikov-de Haas (SdH) oscillations in highly disordered graphene at magnetic fields up to 65 T. Disorder was introduced by hydrogenation of graphene up to a ratio H/C approximate to 0.1%. The analysis of SdH oscillations and QHE indicates that the topological part of the Berry phase, proportional to the pseudospin winding number, is robust against introduction of disorder by hydrogenation in large-scale graphene.