{
  "id": "1010.4600",
  "version": "v2",
  "published": "2010-10-22T00:41:21.000Z",
  "updated": "2011-01-31T04:39:34.000Z",
  "title": "Gigantic enhancement of spin Seebeck effect by phonon drag",
  "authors": [
    "Hiroto Adachi",
    "Ken-ichi Uchida",
    "Eiji Saitoh",
    "Jun-ichiro Ohe",
    "Saburo Takahashi",
    "Sadamichi Maekawa"
  ],
  "comment": "5 pages, 4 figures",
  "journal": "Appl. Phys. Lett. 97, 252506 (2010)",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "We investigate both theoretically and experimentally a gigantic enhancement of the spin Seebeck effect in a prototypical magnet LaY$_2$Fe$_5$O$_{12}$ at low temperatures. Our theoretical analysis sheds light on the important role of phonons; the spin Seebeck effect is enormously enhanced by nonequilibrium phonons that drag the low-lying spin excitations. We further argue that this scenario gives a clue to understand the observation of the spin Seebeck effect that is unaccompanied by a global spin current, and predict that the substrate condition affects the observed signal.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2011-01-31T04:39:34.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "72.20.My",
      "72.25.-b",
      "72.20.Pa",
      "63.20.kd"
    ],
    "keywords": [
      "spin seebeck effect",
      "gigantic enhancement",
      "phonon drag",
      "substrate condition affects",
      "global spin current"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1063/1.3529944",
      "journal": "Applied Physics Letters",
      "year": 2010,
      "month": "Dec",
      "volume": 97,
      "number": 25,
      "pages": 252506
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2010ApPhL..97y2506A"
    }
  }
}