{
  "id": "cond-mat/9907467",
  "version": "v1",
  "published": "1999-07-29T17:46:40.000Z",
  "updated": "1999-07-29T17:46:40.000Z",
  "title": "Detection of Coulomb Charging around an Antidot",
  "authors": [
    "M. Kataoka",
    "C. J. B. Ford",
    "G. Faini",
    "D. Mailly",
    "M. Y. Simmons",
    "D. R. Mace",
    "C. -T. Liang",
    "D. A. Ritchie"
  ],
  "comment": "3 pages, 3 Postscript figures, submitted to the proceedings of EP2DS-13",
  "doi": "10.1016/S1386-9477(99)00216-7",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We have detected oscillations of the charge around a potential hill (antidot) in a two-dimensional electron gas as a function of a perpendicular magnetic field B. The field confines electrons around the antidot in closed orbits, the areas of which are quantised through the Aharonov-Bohm effect. Increasing B reduces each state's area, pushing electrons closer to the centre, until enough charge builds up for an electron to tunnel out. This is a new form of the Coulomb blockade seen in electrostatically confined dots. We have also studied h/2e oscillations and found evidence for coupling of opposite spin states of the lowest Landau level.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-07-29T17:46:40.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coulomb charging",
      "two-dimensional electron gas",
      "perpendicular magnetic field",
      "field confines electrons",
      "opposite spin states"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 3,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}