• 文献标题:   Symmetry of Electron Bands in Graphene: (Nearly) Free Electron Versus Tight-Binding
  • 文献类型:   Article, Early Access
  • 作  者:   KOGAN E, SILKIN VM
  • 作者关键词:   band calculation, graphene, group theory, image state, tight #8208, binding approximation
  • 出版物名称:   PHYSICA STATUS SOLIDI BBASIC SOLID STATE PHYSICS
  • ISSN:   0370-1972 EI 1521-3951
  • 通讯作者地址:   Bar Ilan Univ
  • 被引频次:   0
  • DOI:   10.1002/pssb.202000504 EA NOV 2020
  • 出版年:  

▎ 摘  要

The symmetry labeling of all electron bands in graphene obtained by combining numerical band calculations and analytical analysis based on group theory is presented. The latter is performed both in the framework of the (nearly) free electron model, or in the framework of the tight-binding model. The predictions about relative positions of the bands which can be made on the basis of each of the models just using the group theory (and additional simple qualitative arguments, if necessary) are complimentary.