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Quasiparticle properties of graphene in the presence of disorder

Authors
  • Qaiumzadeh, A.
  • Arabchi, N.
  • Asgari, R.
Type
Published Article
Publication Date
May 26, 2008
Submission Date
May 26, 2008
Identifiers
DOI: 10.1016/j.ssc.2008.05.036
Source
arXiv
License
Yellow
External links

Abstract

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 plays 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 percent at available experimental charge carrier density region.

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