{
  "id": "1011.4559",
  "version": "v1",
  "published": "2010-11-20T07:36:02.000Z",
  "updated": "2010-11-20T07:36:02.000Z",
  "title": "Thermal Enhancement of Interference Effects in Quantum Point Contacts",
  "authors": [
    "Adel Abbout",
    "Gabriel Lemarié",
    "Jean-Louis Pichard"
  ],
  "journal": "Phys. Rev. Lett. 106, 156810 (2011)",
  "doi": "10.1103/PhysRevLett.106.156810",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study an electron interferometer formed with a quantum point contact and a scanning probe tip in a two-dimensional electron gas. The images giving the conductance as a function of the tip position exhibit fringes spaced by half the Fermi wavelength. For a contact opened at the edges of a quantized conductance plateau, the fringes are enhanced as the temperature T increases and can persist beyond the thermal length l_T. This unusual effect is explained assuming a simplified model: The fringes are mainly given by a contribution which vanishes when T -> 0 and has a decay characterized by a T-independent scale.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-11-20T07:36:02.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "85.35.Ds",
      "07.79.-v",
      "72.10.-d",
      "73.23.-b"
    ],
    "keywords": [
      "quantum point contact",
      "interference effects",
      "thermal enhancement",
      "two-dimensional electron gas",
      "t-independent scale"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2011,
      "month": "Apr",
      "volume": 106,
      "number": 15,
      "pages": 156810
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvL.106o6810A"
    }
  }
}