{
  "annotation_id": "a800c0e8-e89d-4733-8c43-3c08404e7815",
  "date_created": "2026-03-02T18:01:07.832000Z",
  "date_modified": "2026-03-02T18:01:07.832000Z",
  "file_hash": "1c044c018fbd1b6bbeec1aa97a901dd9a18f1ab3774a2e9ca0f22d64018b6e23",
  "private": false,
  "record": {
    "abstract": "Ultrathin magnetic films can be modeled as an anisotropic Heisenberg model\nwith long range dipolar interactions. It is believed that the phase diagram\npresents three phases: A ordered ferromagnetic phase (I), a phase characterized\nby a change from out-of-plane to in-plane in the magnetization (II), and a high\ntemperature paramagnetic phase (III). It is claimed that the border lines from\nphase I to III and II to III are of second order and from I to II is first\norder. In the present work we have performed a very careful Monte Carlo\nsimulation of the model. Our results strongly support that the line separating\nphase II and III is of the BKT type.",
    "arxiv_id": "physics/0604067",
    "authors": [
      "M. Rapini",
      "R. A. Dias",
      "B. V. Costa"
    ],
    "categories": [
      "physics.comp-ph"
    ],
    "title": "Phase transition in ultrathin magnetic films with long range   interactions",
    "url": "https://arxiv.org/abs/physics/0604067"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1602fbf7-d872-43ab-981a-8b84a1238a72",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}