{
  "id": "cond-mat/0506347",
  "version": "v2",
  "published": "2005-06-15T19:18:57.000Z",
  "updated": "2005-08-04T14:50:05.000Z",
  "title": "Imaging Transport Resonances in the Quantum Hall Effect",
  "authors": [
    "G. A. Steele",
    "R. C. Ashoori",
    "L. N. Pfeiffer",
    "K. W. West"
  ],
  "comment": "4 pages, 4 figures, submitted to PRL. For movies and additional infomation, see http://electron.mit.edu/scanning/; Added scale bars to images, revised discussion of figure 3, other minor changes",
  "journal": "Phys. Rev. Lett. 95, 136804 (2005)",
  "doi": "10.1103/PhysRevLett.95.136804",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We use a scanning capacitance probe to image transport in the quantum Hall system. Applying a DC bias voltage to the tip induces a ring-shaped incompressible strip (IS) in the 2D electron system (2DES) that moves with the tip. At certain tip positions, short-range disorder in the 2DES creates a quantum dot island in the IS. These islands enable resonant tunneling across the IS, enhancing its conductance by more than four orders of magnitude. The images provide a quantitative measure of disorder and suggest resonant tunneling as the primary mechanism for transport across ISs.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-08-04T14:50:05.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum hall effect",
      "imaging transport resonances",
      "dc bias voltage",
      "quantum dot island",
      "quantum hall system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}