Type
ArticleKAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Spintronics Theory Group
KAUST Grant Number
OSR-CRG URF/1/1693-01Date
2016-06-21Permanent link to this record
http://hdl.handle.net/10754/617305
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Show full item recordAbstract
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.Citation
Phenomenology of chiral damping in noncentrosymmetric magnets 2016, 93 (21) Physical Review BSponsors
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).Publisher
American Physical Society (APS)Journal
Physical Review BarXiv
1507.07762Additional Links
http://link.aps.org/doi/10.1103/PhysRevB.93.214429ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevB.93.214429