{
  "id": "cond-mat/0608013",
  "version": "v2",
  "published": "2006-08-01T08:41:44.000Z",
  "updated": "2006-11-01T13:28:30.000Z",
  "title": "Reduction of surface coverage of finite systems due to geometrical steps",
  "authors": [
    "K. Morawetz",
    "C. Olbrich",
    "S. Gemming",
    "M. Schreiber"
  ],
  "comment": "corrected version 7 pages, 4 figures",
  "journal": "Eur. Phys. J. B 62, 311-317 (2008)",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.mtrl-sci",
    "nucl-th",
    "physics.plasm-ph"
  ],
  "abstract": "The coverage of vicinal, stepped surfaces with molecules is simulated with the help of a two-dimensional Ising model including local distortions and an Ehrlich-Schwoebel barrier term at the steps. An effective two-spin model is capable to describe the main properties of this distorted Ising model. It is employed to analyze the behavior of the system close to the critical points. Within a well-defined regime of bonding strengths and Ehrlich-Schwoebel barriers we find a reduction of coverage (magnetization) at low temperatures due to the presence of the surface step. This results in a second, low-temperature transition besides the standard Ising order-disorder transition. The additional transition is characterized by a divergence of the susceptibility as a finite-size effect. Due to the surface step the mean-field specific heat diverges with a power law.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2006-11-01T13:28:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "finite systems",
      "surface coverage",
      "geometrical steps",
      "surface step",
      "mean-field specific heat diverges"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1140/epjb/e2008-00168-y"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 725642
    }
  }
}