{
  "id": "cond-mat/0304385",
  "version": "v2",
  "published": "2003-04-16T23:38:30.000Z",
  "updated": "2004-01-29T11:31:01.000Z",
  "title": "NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism",
  "authors": [
    "J. Martinek",
    "M. Sindel",
    "L. Borda",
    "J. Barnaś",
    "J. König",
    "G. Schön",
    "J. von Delft"
  ],
  "comment": "4 pages, 4 figures",
  "journal": "Phys. Rev. Lett. 91, 247202 (2003)",
  "doi": "10.1103/PhysRevLett.91.247202",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "The Kondo effect in quantum dots (QDs) - artificial magnetic impurities - attached to ferromagnetic leads is studied with the numerical renormalization group (NRG) method. It is shown that the QD level is spin-split due to presence of ferromagnetic electrodes, leading to a suppression of the Kondo effect. We find that the Kondo effect can be restored by compensating this splitting with a magnetic field. Although the resulting Kondo resonance then has an unusual spin asymmetry with a reduced Kondo temperature, the ground state is still a locally-screened state, describable by Fermi liquid theory and a generalized Friedel sum rule, and transport in the unitary limit is not spin dependent.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2004-01-29T11:31:01.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "kondo effect",
      "itinerant-electron ferromagnetism",
      "nrg study",
      "artificial magnetic impurities",
      "generalized friedel sum rule"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}