{
  "id": "cond-mat/0310059",
  "version": "v1",
  "published": "2003-10-03T09:43:03.000Z",
  "updated": "2003-10-03T09:43:03.000Z",
  "title": "Exchange-correlation energy of a multicomponent two-dimensional electron gas",
  "authors": [
    "K. Karkkainen",
    "M. Koskinen",
    "S. M. Reimann",
    "M. Manninen"
  ],
  "comment": "5 pages, 2 figures, to be published in Phys. Rev. B",
  "journal": "Phys. Rev. B 68, 205322 (2003)",
  "doi": "10.1103/PhysRevB.68.205322",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We discuss the exchange-correlation energy of a multicomponent (multi-valley) two-dimensional electron gas and show that an extension of the recent parametrisation of the exchange-correlation energy by Attacalite et al (Phys. Rev. Lett. 88, 256601 (2002)) describes well also the multicomponent system. We suggest a simple mass dependence of the correlation energy and apply it to study the phase diagram of the multicomponent 2D electron (or hole) gas. The results show that even a small mass difference of the components (e.g. heavy and light holes) decreases the concentration of the lighter components already at relatively high densities.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-10-03T09:43:03.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "multicomponent two-dimensional electron gas",
      "exchange-correlation energy",
      "simple mass dependence",
      "small mass difference",
      "multicomponent 2d electron"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}