{
  "id": "1604.07688",
  "version": "v1",
  "published": "2016-04-26T14:19:30.000Z",
  "updated": "2016-04-26T14:19:30.000Z",
  "title": "Continuously Varying Critical Exponents Beyond Weak Universality",
  "authors": [
    "N. Khan",
    "P. Sarkar",
    "A. Midya",
    "P. Mandal",
    "P. K. Mohanty"
  ],
  "comment": "5 pages, 3 eps figures (and supplemental material 1 page, 2 eps figures)",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.other"
  ],
  "abstract": "We show, from magnetization measurements, that the the critical exponents \\beta, \\gamma and \\delta of the ferromagnetic to paramagnetic transition in [Sm_{1-y}Nd_{y}]_{0.52}[Sr]_{0.48}MnO_3 vary continuously with Nd concentration (y>0.4) and the critical line eventually ends at the Heisenberg universality class in three dimension when y=1. Continuous variation of these three critical exponents violate both universality and weak universality hypothesis. We propose a new scaling ansatz which explains the observed variation of exponents and suggests that the y-dependence of critical exponents does not lead to new universality, rather they are only Heisenberg fixed points with rescaled exponents. The proposed scaling hypothesis includes weak universality as a special case and provides a generic route leading to continuous variation of critical exponents and multicriticality.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-04-26T14:19:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "continuously varying critical exponents",
      "continuous variation",
      "weak universality hypothesis",
      "heisenberg universality class",
      "paramagnetic transition"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160407688K"
    }
  }
}