• 文献标题:   Quantum Field Theory Approach to the Optical Conductivity of Strained and Deformed Graphene
  • 文献类型:   Article
  • 作  者:   DE PAULA W, CHAVES AJ, OLIVEIRA O, FREDERICO T
  • 作者关键词:  
  • 出版物名称:   FEWBODY SYSTEMS
  • ISSN:   0177-7963 EI 1432-5411
  • 通讯作者地址:   Inst Tecnol Aeronaut
  • 被引频次:   3
  • DOI:   10.1007/s00601-015-1010-z
  • 出版年:   2015

▎ 摘  要

The computation of the optical conductivity of strained and deformed graphene is discussed within the framework of quantum field theory in curved spaces. The analytical solutions of the Dirac equation in an arbitrary static background geometry for one dimensional periodic deformations are computed, together with the corresponding Dirac propagator. Analytical expressions are given for the optical conductivity of strained and deformed graphene associated with both intra and interbrand transitions. The special case of small deformations is discussed and the result compared to the prediction of the tight-binding model.