{ "id": "0902.4360", "version": "v1", "published": "2009-02-25T12:43:36.000Z", "updated": "2009-02-25T12:43:36.000Z", "title": "Spin torque and waviness in magnetic multilayers: a bridge between Valet-Fert theory and quantum approaches", "authors": [ "Valentin S. Rychkov", "Simone Borlenghi", "Henri Jaffres", "Albert Fert", "Xavier Waintal" ], "journal": "Phys. Rev. Lett. 103, 066602 (2009)", "doi": "10.1103/PhysRevLett.103.066602", "categories": [ "cond-mat.mes-hall" ], "abstract": "We develop a simple theoretical framework for transport in magnetic multilayers, based on Landauer-Buttiker scattering formalism and Random Matrix Theory. A simple transformation allows one to go from the scattering point of view to theories expressed in terms of local currents and electrochemical potential. In particular, our theory can be mapped onto the well established classical Valet Fert theory for collinear systems. For non collinear systems, in the absence of spin-flip scattering, our theory can be mapped onto the generalized circuit theory. We apply our theory to the angular dependance of spin accumulation and spin torque in non-collinear spin valves.", "revisions": [ { "version": "v1", "updated": "2009-02-25T12:43:36.000Z" } ], "analyses": { "subjects": [ "72.25.Ba", "75.47.-m", "75.70.Cn", "85.75.-d" ], "keywords": [ "spin torque", "magnetic multilayers", "quantum approaches", "valet-fert theory", "random matrix theory" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2009, "month": "Aug", "volume": 103, "number": 6, "pages": "066602" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009PhRvL.103f6602R" } } }