{
  "id": "0707.1656",
  "version": "v1",
  "published": "2007-07-11T17:03:59.000Z",
  "updated": "2007-07-11T17:03:59.000Z",
  "title": "Electrical control of spin relaxation in a quantum dot",
  "authors": [
    "S. Amasha",
    "K. MacLean",
    "Iuliana P. Radu",
    "D. M. Zumbuhl",
    "M. A. Kastner",
    "M. P. Hanson",
    "A. C. Gossard"
  ],
  "comment": "4 pages, 3 figures",
  "journal": "Phys. Rev. Lett. 100 046803 (2008)",
  "doi": "10.1103/PhysRevLett.100.046803",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We demonstrate electrical control of the spin relaxation time T_1 between Zeeman split spin states of a single electron in a lateral quantum dot. We find that relaxation is mediated by the spin-orbit interaction, and by manipulating the orbital states of the dot using gate voltages we vary the relaxation rate W= (T_1)^-1 by over an order of magnitude. The dependence of W on orbital confinement agrees with theoretical predictions and from these data we extract the spin-orbit length. We also measure the dependence of W on magnetic field and demonstrate that spin-orbit mediated coupling to phonons is the dominant relaxation mechanism down to 1T, where T_1 exceeds 1s.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-07-11T17:03:59.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.63.Kv",
      "03.67.Lx",
      "72.25.Rb",
      "76.30.-v"
    ],
    "keywords": [
      "electrical control",
      "zeeman split spin states",
      "lateral quantum dot",
      "spin relaxation time",
      "orbital confinement agrees"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2008,
      "month": "Feb",
      "volume": 100,
      "number": 4,
      "pages": "046803"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvL.100d6803A"
    }
  }
}