{
  "id": "cond-mat/0003117",
  "version": "v1",
  "published": "2000-03-08T01:28:34.000Z",
  "updated": "2000-03-08T01:28:34.000Z",
  "title": "Quantum Hall effect at weak magnetic field: New float-up picture",
  "authors": [
    "D. N. Sheng",
    "Z. Y. Weng",
    "X. G. Wen"
  ],
  "comment": "4 pages, 4 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "The fate of integer quantum Hall effect (IQHE) at weak magnetic field is studied numerically in the presence of {\\it correlated} disorders. We find a systematic {\\it float-up} and {\\it merging} picture for extended levels on the low-energy side which results in direct transitions from higher-plateau IQHE states to the insulator. Such direct transitions are controlled by a quantum critical point with a {\\it universal} scaling form of conductance. The phase diagram is in good agreement with recent experiments. The issue of continuum vs. lattice model is also discussed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2000-03-08T01:28:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "weak magnetic field",
      "float-up picture",
      "integer quantum hall effect",
      "direct transitions",
      "higher-plateau iqhe states"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2000cond.mat..3117S"
    }
  }
}