{
  "id": "cond-mat/0009346",
  "version": "v1",
  "published": "2000-09-22T12:36:05.000Z",
  "updated": "2000-09-22T12:36:05.000Z",
  "title": "Phonon emission and absorption in the fractional quantum Hall effect",
  "authors": [
    "F. Schulze-Wischeler",
    "U. Zeitler",
    "M. Monka",
    "F. Hohls",
    "R. J. Haug",
    "K. Eberl"
  ],
  "comment": "4 pages, 3 figures; 14th International Conference on High Magnetic Fields in Semiconductor Physics, September 24-29, 2000, Matsue, Japan",
  "journal": "Physica B 298, 164 (2001)",
  "doi": "10.1016/S0921-4526(01)00293-9",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We investigate the time dependent thermal relaxation of a two-dimensional electron system in the fractional quantum Hall regime where ballistic phonons are used to heat up the system to a non-equilibrium temperature. The thermal relaxation of a 2DES at $\\nu=1/2$ can be described in terms of a broad band emission of phonons, with a temperature dependence proportional to $T^4$. In contrast, the relaxation at fractional filling $\\nu=2/3$ is characterized by phonon emission around a single energy, the magneto-roton gap. This leads to a strongly reduced energy relaxation rate compared to $\\nu=1/2$ with only a weak temperature dependence for temperatures 150 mK $< T <$ 400 mK.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2000-09-22T12:36:05.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "fractional quantum hall effect",
      "phonon emission",
      "reduced energy relaxation rate",
      "fractional quantum hall regime"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}