{
  "id": "1303.6330",
  "version": "v1",
  "published": "2013-03-25T22:17:32.000Z",
  "updated": "2013-03-25T22:17:32.000Z",
  "title": "Ab initio studies of the tunneling magneto-Seebeck effect: influence of magnetic material",
  "authors": [
    "Christian Heiliger",
    "Christian Franz",
    "Michael Czerner"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We found a strong influence of the composition of the magnetic material on the temperature dependence of the tunneling magneto-Seebeck effect in $MgO$ based tunnel junctions. We use \\textit{ab initio} alloy theory to consider different $Fe_xCo_{1-x}$ alloys for the ferromagnetic layer. Even a small change of the composition leads to strong changes in the magnitude or even in the sign of the tunneling magneto-Seebeck effect. This can explain differences between recent experimental results. In addition, changing the barrier thickness from six to ten monolayers of $MgO$ leads also to a non-trivial change of the temperature dependence. Our results emphasize that the tunneling magneto-Seebeck effect depends very crucially and is very sensitive to material parameters and show that further experimental and theoretical investigations are necessary.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-03-25T22:17:32.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.76.+j",
      "73.50.Jt",
      "73.63.-b",
      "85.30.Mn"
    ],
    "keywords": [
      "ab initio studies",
      "magnetic material",
      "temperature dependence",
      "tunneling magneto-seebeck effect depends",
      "strong influence"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.87.224412",
      "journal": "Physical Review B",
      "year": 2013,
      "month": "Jun",
      "volume": 87,
      "number": 22,
      "pages": 224412
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvB..87v4412H"
    }
  }
}