• 文献标题:   A free-electron model for the Dirac bands in graphene
  • 文献类型:   Article
  • 作  者:   KISSINGER GS, SATPATHY S
  • 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 Missouri
  • 被引频次:   1
  • DOI:   10.1103/PhysRevB.94.205126
  • 出版年:   2016

▎ 摘  要

We present a new method for describing the electronic structure of graphene, by treating the honeycomb lattice as an arrangement of crisscrossing one-dimensional quantum wires. The electrons travel as free particles along the wires and interfere at the three-way junctions formed by the carbon atoms. The approach produces the linearly dispersive Dirac band structure as well as the chiral pseudo-spin-wave functions. When vacancies are incorporated, the model reproduces the well known zero mode states.