2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/143469Screening 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.(v1) 4 pages, 1 figure (v2) Much improved introduction; extended range of numericsMesoscale and Nanoscale PhysicsMaterials Sciencetext