{
  "id": "cond-mat/0208091",
  "version": "v2",
  "published": "2002-08-06T04:25:43.000Z",
  "updated": "2002-12-05T21:35:25.000Z",
  "title": "Spin pumping and magnetization dynamics in metallic multilayers",
  "authors": [
    "Yaroslav Tserkovnyak",
    "Arne Brataas",
    "Gerrit E. W. Bauer"
  ],
  "comment": "10 pages, 6 figures",
  "journal": "Phys. Rev. B 66 (2002) 224403",
  "doi": "10.1103/PhysRevB.66.224403",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study the magnetization dynamics in thin ferromagnetic films and small ferromagnetic particles in contact with paramagnetic conductors. A moving magnetization vector causes \\textquotedblleft pumping\\textquotedblright of spins into adjacent nonmagnetic layers. This spin transfer affects the magnetization dynamics similar to the Landau-Lifshitz-Gilbert phenomenology. The additional Gilbert damping is significant for small ferromagnets, when the nonmagnetic layers efficiently relax the injected spins, but the effect is reduced when a spin accumulation build-up in the normal metal opposes the spin pumping. The damping enhancement is governed by (and, in turn, can be used to measure) the mixing conductance or spin-torque parameter of the ferromagnet--normal-metal interface. Our theoretical findings are confirmed by agreement with recent experiments in a variety of multilayer systems.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2002-12-05T21:35:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "metallic multilayers",
      "spin pumping",
      "adjacent nonmagnetic layers",
      "small ferromagnetic particles",
      "spin transfer affects"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}