{
  "id": "1301.1662",
  "version": "v1",
  "published": "2013-01-08T20:27:30.000Z",
  "updated": "2013-01-08T20:27:30.000Z",
  "title": "Evolution of the persistent spin helix in the presence of Hartree-Fock fields",
  "authors": [
    "Matthias C. Lüffe",
    "Jeroen Danon",
    "Tamara S. Nunner"
  ],
  "comment": "9 pages, 3 figures",
  "doi": "10.1103/PhysRevB.87.125416",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "We derive a spin diffusion equation for a spin-orbit coupled two-dimensional electron gas including the Hartree-Fock field resulting from 1st order electron-electron interactions. We find that the lifetime of the persistent spin helix, which emerges for equal linear Rashba- and Dresselhaus spin-orbit interactions, can be enhanced considerably for large initial spin polarizations due to the Hartree-Fock field. The reason is a reduction of the symmetry-breaking cubic Dresselhaus scattering rate by the Hartree-Fock field. Also higher harmonics are generated and the polarization of the persistent spin helix rotates out of the (Sy,Sz)-plane acquiring a finite Sx-component. This effect becomes more pronounced, when the cubic Dresselhaus spin-orbit interaction is large.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-01-08T20:27:30.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.30.Fv",
      "75.40.Gb",
      "72.25.Dc"
    ],
    "keywords": [
      "persistent spin helix",
      "hartree-fock field",
      "cubic dresselhaus scattering rate",
      "cubic dresselhaus spin-orbit interaction",
      "spin-orbit coupled two-dimensional electron gas"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2013,
      "month": "Mar",
      "volume": 87,
      "number": 12,
      "pages": 125416
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvB..87l5416L"
    }
  }
}