{
  "id": "0704.1704",
  "version": "v2",
  "published": "2007-04-13T07:20:20.000Z",
  "updated": "2008-03-04T23:20:04.000Z",
  "title": "Magneto-oscillations due to electron-electron interactions in the ac conductivity of a 2D electron gas",
  "authors": [
    "T. A. Sedrakyan",
    "M. E. Raikh"
  ],
  "comment": "4+ pages, 3 figures",
  "journal": "Phys. Rev. Lett. 100, 086808 (2008)",
  "doi": "10.1103/PhysRevLett.100.086808",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Electron-electron interactions give rise to the correction, \\delta\\sigma^{int}(\\omega), to the ac magnetoconductivity, \\sigma(\\omega), of a clean 2D electron gas that is periodic in \\omega_c^{-1}, where \\omega_c is the cyclotron frequency. Unlike conventional harmonics of the cyclotron resonance, which are periodic with \\omega, this correction is periodic with \\omega^{3/2}. Oscillations in \\delta\\sigma^{int}(\\omega) develop at low magnetic fields, \\omega_c\\ll\\omega, when the conventional harmonics are suppressed by the disorder. Their origin is a {\\em double} backscattering of an electron from the impurity-induced Friedel oscillations. During the time \\sim\\omega^{-1} between the two backscattering events the electron travels only a {\\em small portion} of the Larmour circle.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-03-04T23:20:04.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.40.-c",
      "73.43.Qt",
      "78.67.-n"
    ],
    "keywords": [
      "electron-electron interactions",
      "ac conductivity",
      "conventional harmonics",
      "magneto-oscillations",
      "clean 2d electron gas"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2008,
      "month": "Feb",
      "volume": 100,
      "number": 8,
      "pages": "086808"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvL.100h6808S"
    }
  }
}