{
  "id": "0705.4486",
  "version": "v2",
  "published": "2007-05-31T00:50:21.000Z",
  "updated": "2008-03-17T05:35:19.000Z",
  "title": "Crossover from weak localization to Shubnikov-de Haas oscillations in a high mobility 2D electron gas",
  "authors": [
    "T. A. Sedrakyan",
    "M. E. Raikh"
  ],
  "comment": "4+ pages, 3 figures",
  "journal": "Phys. Rev. Lett. 100, 106806 (2008)",
  "doi": "10.1103/PhysRevLett.100.106806",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study the magnetoresistance, \\delta\\rho_{xx}(B)/\\rho_0, of a high-mobility 2D electron gas in the domain of magnetic fields, B, intermediate between the weak localization and the Shubnikov-de Haas oscillations, where \\delta\\rho_{xx}(B)/\\rho_0 is governed by the interaction effects. Assuming short-range impurity scattering, we demonstrate that in the {\\em second order} in the interaction parameter, $\\lambda$, a {\\em linear} B-dependence, \\delta\\rho_{xx}(B)/\\rho_0\\sim \\lambda^2\\omega_c/E_F with {\\em temperature-independent} slope emerges in this domain of B (here \\omega_c and E_F are the cyclotron frequency and the Fermi energy, respectively). Unlike previous mechanisms, the linear magnetoresistance is {\\em unrelated} to the electron executing the full Larmour circle, but rather originates from the impurity scattering via the B-dependence of the {\\em phase} of the impurity-induced Friedel oscillations.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-03-17T05:35:19.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.20.Fz",
      "71.10.-w",
      "72.10.-d",
      "73.23.Ad"
    ],
    "keywords": [
      "high mobility 2d electron gas",
      "shubnikov-de haas oscillations",
      "weak localization",
      "high-mobility 2d electron gas"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2008,
      "month": "Mar",
      "volume": 100,
      "number": 10,
      "pages": 106806
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvL.100j6806S"
    }
  }
}