{
  "id": "cond-mat/9908123",
  "version": "v1",
  "published": "1999-08-09T09:30:35.000Z",
  "updated": "1999-08-09T09:30:35.000Z",
  "title": "Frequency dependent conductivity in the integer quantum Hall effect",
  "authors": [
    "A. Bäker",
    "L. Schweitzer"
  ],
  "comment": "4 pages LaTeX (annalen.cls), 3 ps-figures included. Proceedings of Localisation 1999, Hamburg, Germany; to appear in Annalen der Physik (Leipzig)",
  "journal": "Ann. Phys. (Leipzig) 8 (1999) Spec. Issue, SI-21 -- SI-24",
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.mes-hall"
  ],
  "abstract": "Frequency dependent electronic transport is investigated for a two-dimensional disordered system in the presence of a strong perpendicular static magnetic field. The ac-conductivity is calculated numerically from Kubo's linear response theory using a recursive Green's function technique. In the tail of the lowest Landau band, we find a linear frequency dependence for the imaginary part of $\\sigma_{xx}(\\omega)$ which agrees well with earlier analytical calculations. On the other hand, the frequency dependence of the real part can not be expressed by a simple power law. The broadening of the $\\sigma_{xx}$-peak with frequency in the lowest Landau band is found to exhibit a scaling relation from which the critical exponent can be extracted.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-08-09T09:30:35.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "integer quantum hall effect",
      "frequency dependent conductivity",
      "lowest landau band",
      "strong perpendicular static magnetic field",
      "frequency dependent electronic transport"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "1999cond.mat..8123B"
    }
  }
}