{
  "id": "0809.2503",
  "version": "v1",
  "published": "2008-09-15T12:30:40.000Z",
  "updated": "2008-09-15T12:30:40.000Z",
  "title": "Monte Carlo studies of the Ising square lattice with competing interactions",
  "authors": [
    "A. Kalz",
    "A. Honecker",
    "S. Fuchs",
    "T. Pruschke"
  ],
  "comment": "4 pages, 4 figures, accepted for publication in the proceedings of the conference on Highly Frustrated Magnets 2008 in Braunschweig",
  "journal": "J. Phys.: Conf. Ser. 145 (2009) 012051",
  "doi": "10.1088/1742-6596/145/1/012051",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.str-el"
  ],
  "abstract": "We use improved Monte-Carlo algorithms to study the antiferromagnetic 2D-Ising model with competing interactions $J_1$ on nearest neighbour and $J_2$ on next-nearest neighbour bonds. The finite-temperature phase diagram is divided by a critical point at $J_2 = J_1/2$ where the groundstate is highly degenerate. To analyse the phase boundaries we look at the specific heat and the energy distribution for various ratios of $J_2/J_1$. We find a first order transition for small $J_2 > J_1/2$ and the transition temperature suppressed to $T_C=0$ at the critical point.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-09-15T12:30:40.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "monte carlo studies",
      "ising square lattice",
      "competing interactions",
      "first order transition",
      "next-nearest neighbour bonds"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "publication": {
      "journal": "Journal of Physics Conference Series",
      "year": 2009,
      "month": "Jan",
      "volume": 145,
      "number": 1,
      "pages": "012051"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009JPhCS.145a2051K"
    }
  }
}