{ "id": "1609.07096", "version": "v1", "published": "2016-09-22T18:18:26.000Z", "updated": "2016-09-22T18:18:26.000Z", "title": "Scale-invariant puddles in Graphene: Geometric properties of electron-hole distribution at the Dirac point", "authors": [ "M. N. Najafi", "M. Ghasemi Nezhadhaghighi" ], "comment": "12 pages, 10 figures", "categories": [ "cond-mat.mes-hall", "cond-mat.stat-mech" ], "abstract": "We characterize the carrier density profile of the ground state of graphene in the presence of particle-particle interaction and random charged impurity for zero gate voltage. We provide detailed analysis on the resulting spatially inhomogeneous electron gas taking into account the particle-particle interaction and the remote coulomb disorder on an equal footing within the Thomas-Fermi-Dirac theory. We present some general features of the carrier density probability measure of the graphene sheet. We also show that, when viewed as a random surface, the resulting electron-hole puddles at zero chemical potential show peculiar self-similar statistical properties. Although the disorder potential is chosen to be Gaussian, we show that the charge field is non-Gaussian with unusual Kondev relations which can be regarded as a new class of two-dimensional (2D) random-field surfaces.", "revisions": [ { "version": "v1", "updated": "2016-09-22T18:18:26.000Z" } ], "analyses": { "keywords": [ "dirac point", "geometric properties", "electron-hole distribution", "scale-invariant puddles", "spatially inhomogeneous electron gas" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }