{
  "id": "cond-mat/0605510",
  "version": "v2",
  "published": "2006-05-22T05:35:57.000Z",
  "updated": "2006-05-25T09:45:32.000Z",
  "title": "Localization in a quantum spin Hall system",
  "authors": [
    "Masaru Onoda",
    "Yshai Avishai",
    "Naoto Nagaosa"
  ],
  "comment": "5 pages, 4 figures, REVTeX",
  "journal": "Phys. Rev. Lett. 98, 076802 (2007)",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Localization problem of electronic states in a two-dimensional quantum spin Hall system (QSH - a symplectic model with a non-trivial topological structure) is studied by the transfer matrix method. The phase diagram in the plane of energy and disorder strength is exposed, and demonstrates \"levitation\" and \"pair-annihilation\" of the domains of extended states analogous to that of the integer quantum Hall system. The critical exponent $\\nu$ for the divergence of the localization length is estimated as $\\nu \\cong 1.6$ which is distinct from both exponents pertaining to the conventional symplectic and the unitary quantum Hall systems. This strongly suggests a different universality class related to the non-trivial topology of the QSH system.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2006-05-25T09:45:32.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "localization",
      "two-dimensional quantum spin hall system",
      "unitary quantum hall systems",
      "integer quantum hall system",
      "transfer matrix method"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}