{
  "id": "cond-mat/0410369",
  "version": "v1",
  "published": "2004-10-14T14:25:28.000Z",
  "updated": "2004-10-14T14:25:28.000Z",
  "title": "Self-organized criticality induced by quenched disorder: experiments on flux avalanches in NbH$_x$ films",
  "authors": [
    "M. S. Welling",
    "C. M. Aegerter",
    "R. J. Wijngaarden"
  ],
  "comment": "4 pages, 4 figures",
  "doi": "10.1103/PhysRevB.71.104515",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.supr-con"
  ],
  "abstract": "We present an experimental study of the influence of quenched disorder on the distribution of flux avalanches in type-II superconductors. In the presence of much quenched disorder, the avalanche sizes are power-law distributed and show finite size scaling, as expected from self-organized criticality (SOC). Furthermore, the shape of the avalanches is observed to be fractal. In the absence of quenched disorder, a preferred size of avalanches is observed and avalanches are smooth. These observations indicate that a certain minimum amount of disorder is necessary for SOC behavior. We relate these findings to the appearance or non-appearance of SOC in other experimental systems, particularly piles of sand.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-10-14T14:25:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quenched disorder",
      "flux avalanches",
      "self-organized criticality",
      "experiments",
      "experimental study"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}