{
  "id": "cond-mat/0404246",
  "version": "v1",
  "published": "2004-04-10T07:10:21.000Z",
  "updated": "2004-04-10T07:10:21.000Z",
  "title": "A study on the universality of the magnetic-field-induced phase transitions in the two-dimensional electron system in an AlGaAs/GaAs heterostructure",
  "authors": [
    "C. F. Huang",
    "Y. H. Chang",
    "H. H. Cheng",
    "C. -T. Liang",
    "G. J. Hwang"
  ],
  "comment": "11 pages, 3 figures",
  "journal": "Physica E 22, 232 (2004)",
  "doi": "10.1016/j.physe.2003.11.256",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Plateau-plateau (P-P) and insulator-quantum Hall conductor (I-QH) transitions are observed in the two-dimensional electron system in an AlGaAs/GaAs heterostructure. At high fields, the critical conductivities are not of the expected universal values and the temperature-dependence of the width of the P-P transition does not follow the universal scaling. However, the semicircle law still holds, and universal scaling behavior was found in the P-P transition after mapping it to the I-QH transition by the Landau-level addition transformation. We pointed out that in order to get a correct critical exponent, it is essential that the scaling analysis must be performed near the critical point. And with proper analysis, we found that the P-P transition and the insulator quantum Hall conductor transitions are of the same universal class.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-04-10T07:10:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "two-dimensional electron system",
      "magnetic-field-induced phase transitions",
      "algaas/gaas heterostructure",
      "p-p transition",
      "insulator quantum hall conductor transitions"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}