Screening of a hypercritical charge in graphene

M. M. Fogler, D. S. Novikov, B. I. Shklovskii

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Abstract

Screening of a large external charge in graphene is studied. The charge is assumed to be displaced away or smeared over a finite region of the graphene plane. The initial decay of the screened potential with distance is shown to follow the 3 2 power. It gradually changes to the Coulomb law outside of a hypercritical core whose radius is proportional to the external charge.

Original languageEnglish (US)
Article number233402
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number23
DOIs
StatePublished - Dec 5 2007

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