• 文献标题:   Quasiparticle properties of graphene in the presence of disorder
  • 文献类型:   Article
  • 作  者:   QAIUMZADEH A, ARABCHI N, ASGARI R
  • 作者关键词:   graphene, chirality, impurity effect, electronelectron interaction
  • 出版物名称:   SOLID STATE COMMUNICATIONS
  • ISSN:   0038-1098 EI 1879-2766
  • 通讯作者地址:   Inst Studies Theoret Phys Math
  • 被引频次:   17
  • DOI:   10.1016/j.ssc.2008.05.036
  • 出版年:   2008

▎ 摘  要

We calculate the quasiparticle properties of chiral two-dimensional Dirac electrons in graphene within the Landau Fermi Liquid scheme based on GW approximation in the presence of disorder. Disorder effects due to charged impurity scattering play a crucial role in density dependence of quasiparticle quantities. Mode-coupling approach to scattering rate and self-energy in GW approximation for quasiparticle renormalized Fermi velocity and spin-antisymmetric Landau Fermi parameter incorporating the many-body interactions and the disorder effects show reduction of these quantities by 5%-15% at available experimental charge carrier density region. (c) 2008 Elsevier Ltd. All rights reserved.