{
  "id": "cond-mat/9909282",
  "version": "v1",
  "published": "1999-09-20T06:06:47.000Z",
  "updated": "1999-09-20T06:06:47.000Z",
  "title": "Finite-temperature phase transitions in $ν=2$ bilayer quantum Hall systems",
  "authors": [
    "Min-Fong Yang",
    "Ming-Che Chang"
  ],
  "comment": "RevTeX, 5 pages with 3 EPS figures included",
  "journal": "Phys. Rev. B 61, R2429 (2000)",
  "doi": "10.1103/PhysRevB.61.R2429",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "In this paper, the influence of an in-plane magnetic field B_\\parallel on the finite-temperature phase transitions in nu=2 bilayer quantum Hall systems are examined. It is found that there can exist two types of finite-temperature phase transitions. The first is the Kosterlitz-Thouless (KT) transitions, which can have an unusual non-monotonic dependence on B_\\parallel; the second type originates from the crossing of energy levels and always increases with B_\\parallel. Based on these results, we point out that the threshold temperature observed in the inelastic light scattering experiments cannot be the KT transition temperature, because the latter shows a totally different B_\\parallel-dependence as compared with the experimental observation. Instead, it should be the level-crossing temperature, which we found agrees with the B_\\parallel-dependence observed. Moreover, combining the knowledge of these two transition temperatures, a complete finite-temperature phase diagram is presented.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-09-20T06:06:47.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "bilayer quantum hall systems",
      "finite-temperature phase transitions",
      "complete finite-temperature phase diagram",
      "inelastic light scattering experiments",
      "kt transition temperature"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "RevTeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}