{
  "id": "cond-mat/9701039",
  "version": "v1",
  "published": "1997-01-07T23:20:10.000Z",
  "updated": "1997-01-07T23:20:10.000Z",
  "title": "Dynamic nuclear polarization at the edge of a two-dimensional electron gas",
  "authors": [
    "David C. Dixon",
    "Keith R. Wald",
    "Paul L. McEuen",
    "M. R. Melloch"
  ],
  "comment": "8 pages RevTeX, 7 figures (GIF); submitted to Phys. Rev. B",
  "doi": "10.1103/PhysRevB.56.4743",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We have used gated GaAs/AlGaAs heterostructures to explore nonlinear transport between spin-resolved Landau level (LL) edge states over a submicron region of two-dimensional electron gas (2DEG). The current I flowing from one edge state to the other as a function of the voltage V between them shows diode-like behavior---a rapid increase in I above a well-defined threshold V_t under forward bias, and a slower increase in I under reverse bias. In these measurements, a pronounced influence of a current-induced nuclear spin polarization on the spin splitting is observed, and supported by a series of NMR experiments. We conclude that the hyperfine interaction plays an important role in determining the electronic properties at the edge of a 2DEG.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1997-01-07T23:20:10.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "two-dimensional electron gas",
      "dynamic nuclear polarization",
      "edge state",
      "current-induced nuclear spin polarization",
      "diode-like behavior-a rapid increase"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}