Quasiparticle properties of graphene in the presence of disorder

摘要

We calculate the quasiparticle properties of chiral two-dimensional Dirac electrons in graphene withinthe Landau Fermi Liquid scheme based onGW approximation in the presence of disorder. Disorder effectsdue 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 quasiparticlerenormalized Fermi velocity and spin-antisymmetric Landau Fermi parameter incorporating the manybodyinteractions and the disorder effects show reduction of these quantities by 5_C15 at availableexperimental charge carrier density region.