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dc.contributor.authorAkosa, Collins Ashu
dc.contributor.authorTretiakov, O. A.
dc.contributor.authorTatara, G.
dc.contributor.authorManchon, Aurelien
dc.date.accessioned2017-12-28T07:32:16Z
dc.date.available2017-12-28T07:32:16Z
dc.date.issued2017-09-09
dc.identifier.urihttp://hdl.handle.net/10754/626558
dc.description.abstractWe demonstrate that the nontrivial magnetic texture of antiferromagnetic skyrmions (AFM-Sks) promotes a non-vanishing topological spin Hall effect (TSHE) on the flowing electrons. This results in a substantial enhancement of the non-adiabatic torque and hence improves the skyrmion mobility. This non-adiabatic torque increases when decreasing the skyrmion size, and therefore scaling down results in a much higher torque efficiency. In clean AFM-Sks, we find a significant boost of the TSHE close to van Hove singularity. Interestingly, this effect is enhanced away from the band gap in the presence of non-magnetic interstitial defects. Furthermore, unlike their ferromagnetic counterpart, TSHE in AFM-Sks increases with increase in disorder strength thus opening promising avenues for materials engineering of this effect.
dc.publisherarXiv
dc.relation.urlhttp://arxiv.org/abs/1709.02931v1
dc.relation.urlhttp://arxiv.org/pdf/1709.02931v1
dc.rightsArchived with thanks to arXiv
dc.titleTheory of Topological Spin Hall Effect in Antiferromagnetic Skyrmion: Impact on Current-induced Motion
dc.typePreprint
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSpintronics Theory Group
dc.eprint.versionPre-print
dc.contributor.institutionRIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
dc.contributor.institutionInstitute for Materials Research, Tohoku University, Sendai 980-8577, Japan
dc.identifier.arxivid1709.02931
kaust.personAkosa, Collins Ashu
kaust.personManchon, Aurelien
dc.versionv1
refterms.dateFOA2018-06-14T09:21:57Z


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