{
  "id": "0906.3809",
  "version": "v1",
  "published": "2009-06-20T13:56:53.000Z",
  "updated": "2009-06-20T13:56:53.000Z",
  "title": "Wavevector-dependent spin filtering and spin transport through magnetic barriers in graphene",
  "authors": [
    "L. Dell'Anna",
    "A. De Martino"
  ],
  "comment": "10 pages, 12 figures",
  "journal": "Phys. Rev. B 80, 155416 (2009)",
  "doi": "10.1103/PhysRevB.80.155416",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study the spin-resolved transport through magnetic nanostructures in monolayer and bilayer graphene. We take into account both the orbital effect of the inhomogeneous perpendicular magnetic field as well as the in-plane spin splitting due to the Zeeman interaction and to the exchange coupling possibly induced by the proximity of a ferromagnetic insulator. We find that a single barrier exhibits a wavevector-dependent spin filtering effect at energies close to the transmission threshold. This effect is significantly enhanced in a resonant double barrier configuration, where the spin polarization of the outgoing current can be increased up to 100% by increasing the distance between the barriers.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-06-20T13:56:53.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "72.25.-b",
      "85.75.-d",
      "73.21.-b",
      "73.63.-b"
    ],
    "keywords": [
      "spin transport",
      "magnetic barriers",
      "wavevector-dependent spin filtering effect",
      "inhomogeneous perpendicular magnetic field",
      "resonant double barrier configuration"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Oct",
      "volume": 80,
      "number": 15,
      "pages": 155416
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..80o5416D"
    }
  }
}