• 文献标题:   The effects of disorder and interactions on the Anderson transition in doped graphene
  • 文献类型:   Article
  • 作  者:   SONG Y, SONG HK, FENG SP
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICSCONDENSED MATTER
  • ISSN:   0953-8984
  • 通讯作者地址:   Beijing Normal Univ
  • 被引频次:   9
  • DOI:   10.1088/0953-8984/23/20/205501
  • 出版年:   2011

▎ 摘  要

We undertake an exact numerical study of the effects of disorder on the Anderson localization of electronic states in graphene. Analyzing the scaling behaviors of inverse participation ratio and geometrically averaged density of states, we find that the Anderson metal-insulator transition can be introduced by the presence of quenched random disorder. In contrast with the conventional picture of localization, four mobility edges can be observed for the honeycomb lattice with specific disorder strength and impurity concentration. Considering the screening effects of interactions on disorder potentials, the experimental findings of the scale enlargements of puddles can be explained by reviewing the effects of both interactions and disorder.