{
  "id": "cond-mat/0308069",
  "version": "v1",
  "published": "2003-08-05T15:51:30.000Z",
  "updated": "2003-08-05T15:51:30.000Z",
  "title": "Kelvin Probe Spectroscopy of a Two-Dimensional Electron Gas Below 300 mK",
  "authors": [
    "T. Vancura",
    "S. Kicin",
    "T. Ihn",
    "K. Ensslin",
    "M. Bichler",
    "W. Wegscheider"
  ],
  "comment": "3 pages, 3 figures",
  "journal": "Appl. Phys. Lett. 83, 2602 (2003)",
  "doi": "10.1063/1.1614836",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "A scanning force microscope with a base temperature below 300 mK is used for measuring the local electron density of a two-dimensional electron gas embedded in an Ga[Al]As heterostructure. At different separations between AFM tip and sample, a dc-voltage is applied between the tip and the electron gas while simultaneously recording the frequency shift of the oscillating tip. Using a plate capacitor model the local electron density can be extracted from the data. The result coincides within 10% with the data obtained from transport measurements.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-08-05T15:51:30.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.63.-b"
    ],
    "keywords": [
      "kelvin probe spectroscopy",
      "local electron density",
      "plate capacitor model",
      "two-dimensional electron gas",
      "scanning force microscope"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Applied Physics Letters",
      "year": 2003,
      "month": "Sep",
      "volume": 83,
      "number": 13,
      "pages": 2602
    },
    "note": {
      "typesetting": "TeX",
      "pages": 3,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2003ApPhL..83.2602V"
    }
  }
}