Coulomb impurity in graphene
Biswas, Rudro R.
Son, Dam T.
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CitationBiswas, Rudro R., Subir Sachdev, and Dam T. Son. 2007. “Coulomb Impurity in Graphene.” Physical Review B 76 (20). https://doi.org/10.1103/physrevb.76.205122.
AbstractWe consider the problem of screening of an electrically charged impurity in a clean graphene sheet. When electron-electron interactions are neglected, the screening charge has a sign opposite to that of the impurity and is localized near the impurity. Interactions between electrons smear out the induced charge density to give a large-distance tail that follows approximately, but not exactly, an r(-2) behavior and with a sign which is the same as that of the impurity.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41417245
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