{
  "id": "cond-mat/9902169",
  "version": "v2",
  "published": "1999-02-11T14:57:39.000Z",
  "updated": "2014-11-18T22:10:16.000Z",
  "title": "Coulomb Gap in a Doped Semiconductor near the Metal-Insulator Transition: Tunneling Experiment and Scaling Ansatz",
  "authors": [
    "Mark Lee",
    "J. G. Massey",
    "V. L. Nguyen",
    "B. I. Shklovskii"
  ],
  "comment": "10 pages, 7 figures, published in Phys. Rev. B",
  "journal": "Physical Review B 60(3), 1582 (1999)",
  "doi": "10.1103/PhysRevB.60.1582",
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.str-el"
  ],
  "abstract": "Electron tunneling experiments are used to probe Coulomb correlation effects in the single-particle density-of-states (DOS) of boron-doped silicon crystals near the critical density of the metal-insulator transition (MIT). At low energies, a DOS measurement distinguishes between insulating and metallic samples with densities 10 to 15 % on either side of the MIT. However, at higher energies the DOS of both insulators and metals show a common behavior, increasing roughly as the square-root of energy. The observed characteristics of the DOS can be understood using a classical treatment of Coulomb interactions combined with a phenomenological scaling ansatz to describe the length-scale dependence of the dielectric constant as the MIT is approached from the insulating side.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-02-11T14:57:39.000Z",
      "comment": "10 pages, 7 figures, submitted to Phys. Rev. B",
      "journal": null
    },
    {
      "version": "v2",
      "updated": "2014-11-18T22:10:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "metal-insulator transition",
      "scaling ansatz",
      "tunneling experiment",
      "coulomb gap",
      "doped semiconductor"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}