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dc.contributor.authorChen, J.
dc.contributor.authorGarcía-Cervera, C.J. 
dc.contributor.authorYang, X.
dc.date.accessioned2016-06-13T13:09:36Z
dc.date.available2016-06-13T13:09:36Z
dc.date.issued2015-12-31
dc.identifier.issn0018-9464
dc.identifier.urihttp://hdl.handle.net/20.500.11824/59
dc.description.abstractIn this paper, we present a mean-field model of the spin-magnetization coupling in ferromagnetic materials. The model includes non-isotropic diffusion for spin dynamics, which is crucial in capturing strong spin-magnetization coupling. The derivation is based on a moment closure of the quantum spinor dynamics coupled to magnetization dynamics via the Landau-Lifchitz-Gilbert equation and the spin-transfer torque. The method is general and systematic, and can be used to study spin-orbit coupling as well. The form of the non-isotropic diffusion is generic, i.e., independent of the closure assumptions. Fully 3-D numerical simulation is implemented and applied to predict current-driven domain wall motions. It shows a non-linear dependence of the wall speed on the current density, which agrees with the experiments.
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dc.language.isoengen_US
dc.rightsReconocimiento-NoComercial-CompartirIgual 3.0 Españaen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/es/en_US
dc.subjectmagnetization dynamics
dc.subjectSpin dynamics
dc.subjectspin-magnetization coupling
dc.titleMean-field dynamics of the spin-magnetization coupling in ferromagnetic materials: Application to current-driven domain wall motions
dc.typeinfo:eu-repo/semantics/articleen_US
dc.identifier.doi10.1109/TMAG.2015.2401534
dc.relation.publisherversionhttp://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7036067
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen_US
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersionen_US
dc.journal.titleIEEE Transactions on Magneticsen_US


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Reconocimiento-NoComercial-CompartirIgual 3.0 España
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