Thomas-Fermi Screening in Graphene
Other Condensed Matter
2007-05-23 v2
Abstract
The in-plane static screening of the field originated by a charge placed in a graphene sheet is investigated. A self-consistent field equation in the real space domain is obtained by using a suitable Thomas-Fermi procedure. Exact and approximated (for qualitative considerations) solutions are presented. In the case of a charged sheet, the screened potential presents a tail dependent on the free carrier density whose importance is connected with the local features of the impurity system. Early conclusions about Thomas-Fermi screening in graphene are revised.
Keywords
Cite
@article{arxiv.cond-mat/0701108,
title = {Thomas-Fermi Screening in Graphene},
author = {M. Salis},
journal= {arXiv preprint arXiv:cond-mat/0701108},
year = {2007}
}