{
  "id": "cond-mat/0201174",
  "version": "v1",
  "published": "2002-01-11T14:23:38.000Z",
  "updated": "2002-01-11T14:23:38.000Z",
  "title": "Phase transition in a 2-dimensional Heisenberg model",
  "authors": [
    "Henk W. J. Bloete",
    "Wenan Guo",
    "Henk J. Hilhorst"
  ],
  "comment": "6 pages, 5 encapsulated postscript figures; to appear in Physical Review Letters",
  "doi": "10.1103/PhysRevLett.88.047203",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We investigate the two-dimensional classical Heisenberg model with a nonlinear nearest-neighbor interaction V(s,s')=2K[(1+s.s')/2 ]^p. The analogous nonlinear interaction for the XY model was introduced by Domany, Schick, and Swendsen, who find that for large p the Kosterlitz-Thouless transition is preempted by a first-order transition. Here we show that, whereas the standard (p=1) Heisenberg model has no phase transition, for large enough p a first-order transition appears. Both phases have only short range order, but with a correlation length that jumps at the transition.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-01-11T14:23:38.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05.50.+q",
      "64.60.Cn",
      "64.60.Fr",
      "75.10.Hk"
    ],
    "keywords": [
      "phase transition",
      "short range order",
      "nonlinear nearest-neighbor interaction",
      "first-order transition appears",
      "two-dimensional classical heisenberg model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 801692
    }
  }
}