{
  "id": "cond-mat/9710320",
  "version": "v1",
  "published": "1997-10-29T17:08:36.000Z",
  "updated": "1997-10-29T17:08:36.000Z",
  "title": "The roughening transition of interfaces in disordered media",
  "authors": [
    "Uwe Müssel"
  ],
  "comment": "56 pages, LaTeX, 7 postscript figures, language: german",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "Competing pinning effects on a D-dimensional interface by weak impurity disorder and a periodic potential of the underlying crystal lattice are analyzed for $2<D<4$. We use both the Gaussian variational method (GVM) and the functional renormalization group $\\epsilon=4-D$ expansion (FRG) which yield different phase diagrams: Whereas the FRG always predicts a rough phase with irrelevant lattice pinning, the GVM in combination with a three parameter RG for the random potential [T. Nattermann, H. Leschhorn, Europhys. Lett. 16 (1991) 603] leads to a roughening transition of first order. For random bond disorder we compute self-consistently the effective lattice potential.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1997-10-29T17:08:36.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "roughening transition",
      "disordered media",
      "random bond disorder",
      "gaussian variational method",
      "functional renormalization group"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 56,
      "language": "de",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "1997cond.mat.10320M"
    }
  }
}