{
  "id": "0805.2148",
  "version": "v2",
  "published": "2008-05-14T19:57:53.000Z",
  "updated": "2008-10-18T04:00:56.000Z",
  "title": "Density of states of disordered graphene",
  "authors": [
    "Ben Yu-Kuang Hu",
    "E. H. Hwang",
    "S. Das Sarma"
  ],
  "comment": "8 pages, 5 figures",
  "journal": "Phys. Rev. B 78, 165411 (2008)",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We calculate the average single particle density of states in graphene with disorder due to impurity potentials. For unscreened short-ranged impurities, we use the non-self-consistent and self-consistent Born and $T$-matrix approximations to obtain the self-energy. Among these, only the self-consistent $T$-matrix approximation gives a non-zero density of states at the Dirac point. The density of states at the Dirac point is non-analytic in the impurity potential. For screened short-ranged and charged long-range impurity potentials, the density of states near the Dirac point typically increases in the presence of impurities, compared to that of the pure system.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-10-18T04:00:56.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "disordered graphene",
      "average single particle density",
      "matrix approximation",
      "charged long-range impurity potentials",
      "dirac point typically increases"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008arXiv0805.2148Y"
    }
  }
}