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Theory of charged impurity scattering in two-dimensional graphene

TitleTheory of charged impurity scattering in two-dimensional graphene
Publication TypeJournal Article
Year of Publication2009
AuthorsS. Adam, E. H. Hwang, E. Rossi, and S. Das Sarma
JournalSolid State Communications
Date Publishedjul
Keywords2009, 72.10.-d, 73.63.-b, 81.05.uw, Single Fellow

We review the physics of charged impurities in the vicinity of graphene. The long-range nature of Coulomb impurities affects both the nature of the ground state density profile and graphene’s transport properties. We discuss the screening of a single Coulomb impurity and the ensemble averaged density profile of graphene in the presence of many randomly distributed impurities. Finally, we discuss graphene’s transport properties due to scattering off charged impurities both at low and high carrier density.