Phenomenology of chiral damping in noncentrosymmetric magnets

Handle URI:
http://hdl.handle.net/10754/617305
Title:
Phenomenology of chiral damping in noncentrosymmetric magnets
Authors:
Akosa, Collins Ashu ( 0000-0002-5367-9972 ) ; Miron, Ioan Mihai; Gaudin, Gilles; Manchon, Aurelien ( 0000-0002-4768-293X )
Abstract:
A phenomenology of magnetic chiral damping is proposed in the context of magnetic materials lacking inversion symmetry. We show that the magnetic damping tensor acquires a component linear in magnetization gradient in the form of Lifshitz invariants. We propose different microscopic mechanisms that can produce such a damping in ferromagnetic metals, among which local spin pumping in the presence of an anomalous Hall effect and an effective “s-d” Dzyaloshinskii-Moriya antisymmetric exchange. The implication of this chiral damping in terms of domain-wall motion is investigated in the flow and creep regimes.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Phenomenology of chiral damping in noncentrosymmetric magnets 2016, 93 (21) Physical Review B
Publisher:
American Physical Society (APS)
Journal:
Physical Review B
Issue Date:
21-Jun-2016
DOI:
10.1103/PhysRevB.93.214429
Type:
Article
ISSN:
2469-9950; 2469-9969
Sponsors:
This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) through Award No. OSR-CRG URF/1/1693-01 from the Office of Sponsored Research (OSR).
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevB.93.214429
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorAkosa, Collins Ashuen
dc.contributor.authorMiron, Ioan Mihaien
dc.contributor.authorGaudin, Gillesen
dc.contributor.authorManchon, Aurelienen
dc.date.accessioned2016-07-21T10:14:49Z-
dc.date.available2016-07-21T10:14:49Z-
dc.date.issued2016-06-21-
dc.identifier.citationPhenomenology of chiral damping in noncentrosymmetric magnets 2016, 93 (21) Physical Review Ben
dc.identifier.issn2469-9950-
dc.identifier.issn2469-9969-
dc.identifier.doi10.1103/PhysRevB.93.214429-
dc.identifier.urihttp://hdl.handle.net/10754/617305-
dc.description.abstractA phenomenology of magnetic chiral damping is proposed in the context of magnetic materials lacking inversion symmetry. We show that the magnetic damping tensor acquires a component linear in magnetization gradient in the form of Lifshitz invariants. We propose different microscopic mechanisms that can produce such a damping in ferromagnetic metals, among which local spin pumping in the presence of an anomalous Hall effect and an effective “s-d” Dzyaloshinskii-Moriya antisymmetric exchange. The implication of this chiral damping in terms of domain-wall motion is investigated in the flow and creep regimes.en
dc.description.sponsorshipThis publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) through Award No. OSR-CRG URF/1/1693-01 from the Office of Sponsored Research (OSR).en
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevB.93.214429en
dc.rightsArchived with thanks to Physical Review Ben
dc.titlePhenomenology of chiral damping in noncentrosymmetric magnetsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Ben
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionUniversité Grenoble Alpes, INAC-SPINTEC, F-38000 Grenoble, Franceen
dc.contributor.institutionCNRS INAC-SPINTEC, F-38000 Grenoble, Franceen
dc.contributor.institutionCEA INAC-SPINTEC, F-38000 Grenoble, Franceen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAkosa, Collins Ashuen
kaust.authorManchon, Aurelienen
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