Zhe Yuan, Yi Liu, Anton A. Starikov, Paul J. Kelly, Arne Brataas
Intrinsically disordered itinerant ferromagnetic alloys are not readily amenable to theoretical investigation because of their complexity. The study of disordered magnetic domain walls (DWs) is more difficult still because the magnetization direction changes gradually over long length scales. In this paper, we investigate diffusive transport through Permalloy DWs, taking into account non-collinearity, alloy disorder, and spin-orbit coupling fully quantum mechanically, from first principles. In addition to the effects of magnetization mistracking and anisotropic magnetoresistance, we find a new contribution to the resistance of a DW that comes from spin-orbit-coupling mediated spin-flip scattering in a textured diffusive ferromagnet.
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http://arxiv.org/abs/1207.6277
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