{
  "id": "cond-mat/0208409",
  "version": "v1",
  "published": "2002-08-21T14:49:48.000Z",
  "updated": "2002-08-21T14:49:48.000Z",
  "title": "Nonlinear screening in two-dimensional electron gases",
  "authors": [
    "E. Zaremba",
    "I. Nagy",
    "P. M. Echenique"
  ],
  "comment": "4 pages, 4 figures",
  "doi": "10.1103/PhysRevLett.90.046801",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We have performed self-consistent calculations of the nonlinear screening of a point charge Z in a two-dimensional electron gas using a density functional theory method. We find that the screened potential for a Z=1 charge supports a bound state even in the high density limit where one might expect perturbation theory to apply. To explain this behaviour, we prove a theorem to show that the results of linear response theory are in fact correct even though bound states exist.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-08-21T14:49:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "two-dimensional electron gases",
      "nonlinear screening",
      "density functional theory method",
      "bound state",
      "high density limit"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}