{ "id": "0906.5104", "version": "v1", "published": "2009-06-28T20:25:19.000Z", "updated": "2009-06-28T20:25:19.000Z", "title": "Ultrafast demagnetization of ferromagnetic transition metals: The role of the Coulomb interaction", "authors": [ "Michael Krauss", "Tobias Roth", "Sabine Alebrand", "Daniel Steil", "Mirko Cinchetti", "Martin Aeschlimann", "Hans Christian Schneider" ], "comment": "6 pages, 3 figures", "categories": [ "cond-mat.mtrl-sci", "cond-mat.other" ], "abstract": "The Elliott-Yafet mechanism is arguably the most promising candidate to explain the ultrafast demagnetization dynamics in ferromagnetic transition metals on timescales on the order of 100 femtoseconds. So far, only electron-phonon scattering has been analyzed as the scattering process needed to account for the demagnetization due to the Elliott-Yafet mechanism. We show for the first time that the electron-electron scattering contribution to the Elliott-Yafet mechanism has the potential to explain time-resolved magneto-optical Kerr effect measurements on thin magnetic cobalt and nickel films, without reference to a phononic \"spin bath.\"", "revisions": [ { "version": "v1", "updated": "2009-06-28T20:25:19.000Z" } ], "analyses": { "subjects": [ "75.10.Lp", "71.70.Ej", "78.47.J-" ], "keywords": [ "ferromagnetic transition metals", "ultrafast demagnetization", "coulomb interaction", "magneto-optical kerr effect measurements", "elliott-yafet mechanism" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevB.80.180407", "journal": "Physical Review B", "year": 2009, "month": "Nov", "volume": 80, "number": 18, "pages": 180407 }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009PhRvB..80r0407K" } } }