• 文献标题:   Numerical evidence of spectrum rearrangement in impure graphene
  • 文献类型:   Article
  • 作  者:   PERSHOGUBA SS, SKRYPNYK YV, LOKTEV VM
  • 作者关键词:   graphene, impuritie, point defect
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   Moscow Inst Phys Technol
  • 被引频次:   19
  • DOI:   10.1103/PhysRevB.80.214201
  • 出版年:   2009

▎ 摘  要

By means of numerical simulation we confirm that in graphene with point defects a quasigap opens in the vicinity of the resonance state with increasing impurity concentration. We prove that states inside this quasigap cannot longer be described by a wave vector and are strongly localized. We visualize states corresponding to the density of states maxima within the quasigap and show that they are yielded by impurity pair clusters.