{
  "id": "1505.00070",
  "version": "v1",
  "published": "2015-05-01T02:23:44.000Z",
  "updated": "2015-05-01T02:23:44.000Z",
  "title": "Anomalous response in the vicinity of spontaneous symmetry breaking",
  "authors": [
    "Seung Ki Baek",
    "Hye Jin Park",
    "Beom Jun Kim"
  ],
  "comment": "6 pages, 5 figures",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We propose a mechanism to induce negative AC permittivity in the vicinity of a ferroelectric phase transition involved with spontaneous symmetry breaking. This mechanism makes use of responses at low frequency, yielding a high gain and a large phase delay, when the system jumps over the free-energy barrier with the aid of external fields. We illustrate the mechanism by analytically studying spin models with the Glauber-typed dynamics under periodic perturbations. Then, we show that the scenario is supported by numerical simulations of mean-field as well as two-dimensional spin systems.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-05-01T02:23:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spontaneous symmetry breaking",
      "anomalous response",
      "two-dimensional spin systems",
      "induce negative ac permittivity",
      "ferroelectric phase transition"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}