{
  "id": "1202.1534",
  "version": "v1",
  "published": "2012-02-07T21:07:12.000Z",
  "updated": "2012-02-07T21:07:12.000Z",
  "title": "Crossover in Growth Law and Violation of Superuniversality in the Random Field Ising Model",
  "authors": [
    "F. Corberi",
    "E. Lippiello",
    "A. Mukherjee",
    "S. Puri",
    "M. Zannetti"
  ],
  "comment": "To be published in Physical Review E",
  "journal": "Phys. Rev. E 85, 021141 (2012)",
  "doi": "10.1103/PhysRevE.85.021141",
  "categories": [
    "cond-mat.dis-nn"
  ],
  "abstract": "We study the nonconserved phase ordering dynamics of the d = 2, 3 random field Ising model, quenched to below the critical temperature. Motivated by the puzzling results of previous work in two and three di- mensions, reporting a crossover from power-law to logarithmic growth, together with superuniversal behavior of the correlation function, we have undertaken a careful investigation of both the domain growth law and the autocorrelation function. Our main results are as follows: We confirm the crossover to asymptotic logarithmic behavior in the growth law, but, at variance with previous findings, the exponent in the preasymptotic power law is disorder-dependent, rather than being the one of the pure system. Furthermore, we find that the autocorre- lation function does not display superuniversal behavior. This restores consistency with previous results for the d = 1 system, and fits nicely into the unifying scaling scheme we have recently proposed in the study of the random bond Ising model.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-02-07T21:07:12.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05.50.+q",
      "75.50.Lk"
    ],
    "keywords": [
      "random field ising model",
      "superuniversality",
      "preasymptotic power law",
      "random bond ising model",
      "asymptotic logarithmic behavior"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review E",
      "year": 2012,
      "month": "Feb",
      "volume": 85,
      "number": 2,
      "pages": "021141"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvE..85b1141C"
    }
  }
}