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dc.contributor.authorElías, Ricardo Gabriel
dc.contributor.authorVidal-Silva, Nicolas
dc.contributor.authorManchon, Aurelien
dc.date.accessioned2017-04-10T07:49:52Z
dc.date.available2017-04-10T07:49:52Z
dc.date.issued2017-03-09
dc.identifier.citationElías RG, Vidal-Silva N, Manchon A (2017) Steady motion of skyrmions and domains walls under diffusive spin torques. Physical Review B 95. Available: http://dx.doi.org/10.1103/PhysRevB.95.104406.
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.doi10.1103/PhysRevB.95.104406
dc.identifier.urihttp://hdl.handle.net/10754/623108
dc.description.abstractWe explore the role of the spin diffusion of conducting electrons in two-dimensional magnetic textures (domain walls and skyrmions) with spatial variation of the order of the spin precession length λex. The effect of diffusion reflects in four additional torques that are third order in spatial derivatives of magnetization and bilinear in λex and in the nonadiabatic parameter β′. In order to study the dynamics of the solitons when these diffusive torques are present, we derive the Thiele equation in the limit of steady motion and we compare the results with the nondiffusive limit. When considering a homogenous current these torques increase the longitudinal velocity of transverse domain walls of width Δ by a factor (λex/Δ)2(α/3), α being the magnetic damping constant. In the case of single skyrmions with core radius r0 these new contributions tend to increase the Magnus effect in an amount proportional to (λex/r0)2(1+2αβ′).
dc.description.sponsorshipR.G.E. thanks Conicyt Pai/Concurso Nacional de Apoyo al Retorno de Investigadores/as desde el Extranjero Folio 821320024. N.V.-S. thanks CONICYT-PCHA/Doctorado Nacional/2014-21140141. A.M. was supported by the King Abdullah University of Science and Technology (KAUST).
dc.publisherAmerican Physical Society (APS)
dc.relation.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.104406
dc.rightsArchived with thanks to Physical Review B
dc.titleSteady motion of skyrmions and domains walls under diffusive spin torques
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalPhysical Review B
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartamento de Física, CEDENNA, Universidad de Santiago de Chile, Avda. Ecuador 3493, Santiago, , Chile
kaust.personManchon, Aurelien
refterms.dateFOA2018-06-13T22:20:16Z


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