{
  "id": "cond-mat/0701355",
  "version": "v2",
  "published": "2007-01-15T21:49:45.000Z",
  "updated": "2007-02-06T04:06:09.000Z",
  "title": "Exchange energy and generalized polarization in the presence of spin-orbit coupling in two dimensions",
  "authors": [
    "S. Chesi",
    "G. F. Giuliani"
  ],
  "journal": "Phys. Rev. B 75, 155305 (2007)",
  "doi": "10.1103/PhysRevB.75.155305",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We discuss a general form of the exchange energy for a homogeneous system of interacting electrons in two spatial dimensions which is particularly suited in the presence of a generic spin-orbit interaction. The theory is best formulated in terms of a generalized fractional electronic polarization. Remarkably we find that a net generalized polarization does not necessarily translate into an increase in the magnitude of the exchange energy, a fact that in turn favors unpolarized states. Our results account qualitatively for the findings of recent experimental investigations.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-02-06T04:06:09.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "exchange energy",
      "spin-orbit coupling",
      "turn favors unpolarized states",
      "generic spin-orbit interaction",
      "generalized fractional electronic polarization"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}