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Thomas-Fermi Screening in Graphene

M. Salis
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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.

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M. Salis. 2007-01-23. Thomas-Fermi Screening in Graphene. https://arxiv.org/abs/cond-mat/0701108

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