{
  "id": "0904.2635",
  "version": "v1",
  "published": "2009-04-17T06:31:02.000Z",
  "updated": "2009-04-17T06:31:02.000Z",
  "title": "Variation of T$_g$ with magnetic field in a magnetic glass",
  "authors": [
    "Archana Lakhani",
    "Pallavi Kushwaha",
    "R. Rawat",
    "Kranti Kumar",
    "A. Banerjee",
    "P. Chaddah"
  ],
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.str-el"
  ],
  "abstract": "Glass-like arrest has recently been reported in various magnetic materials. As in structural glasses, the kinetics of a first-order transformation is arrested while retaining the higher-entropy phase as a non-ergodic state. We show visual mesoscopic evidence of the irreversible devitrification of the arrested antiferromagnetic-insulating phase in $Pr_{0.5}Ca_{0.5}Mn_{0.975}Al_{0.025}O_3$ to its equilibrium ferromagnetic-metallic phase with isothermal increase of magnetic field, similar to its iso-field devitrification on warming. The slope of $T_g$ vs magnetic field in half-doped manganites is shown to have a sign governed by Le Chatelier's Principle.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-04-17T06:31:02.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "magnetic field",
      "magnetic glass",
      "equilibrium ferromagnetic-metallic phase",
      "visual mesoscopic evidence",
      "higher-entropy phase"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009arXiv0904.2635L"
    }
  }
}