{
  "id": "cond-mat/0110381",
  "version": "v1",
  "published": "2001-10-18T18:27:32.000Z",
  "updated": "2001-10-18T18:27:32.000Z",
  "title": "Tunable Negative Differential Resistance controlled by Spin Blockade in Single Electron Transistors",
  "authors": [
    "M. Ciorga",
    "M. Pioro-Ladriere",
    "P. Zawadzki",
    "P. Hawrylak",
    "A. S. Sachrajda"
  ],
  "comment": "8 pages, 4 figures",
  "doi": "10.1063/1.1459489",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We demonstrate a tunable negative differential resistance controlled by spin blockade in single electron transistors. The single electron transistors containing a few electrons and spin polarized source and drain contacts were formed in GaAs/GaAlAs heterojunctions using metallic gates. Coulomb blockade measurements performed as a function of applied source-drain bias, electron number and magnetic field reveal well defined regimes where a decrease in the current is observed with increasing bias. We establish that the origin of the negative differential regime is the spin-polarized detection of electrons combined with a long spin relaxation time in the dot. These results indicate new functionalities that may be utilized in nano-spintronic devices in which the spin state is electro-statically controlled via the electron occupation number.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2001-10-18T18:27:32.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "85.35.Gv",
      "85.35.Ds",
      "85.30.De",
      "72.20.Ht",
      "73.23.Hk"
    ],
    "keywords": [
      "tunable negative differential resistance",
      "single electron transistors",
      "spin blockade",
      "long spin relaxation time"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Applied Physics Letters",
      "year": 2002,
      "month": "Mar",
      "volume": 80,
      "number": 12,
      "pages": 2177
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2002ApPhL..80.2177C"
    }
  }
}