Diffusive Spin Dynamics in Ferromagnetic Thin Films with a Rashba Interaction

Handle URI:
http://hdl.handle.net/10754/552864
Title:
Diffusive Spin Dynamics in Ferromagnetic Thin Films with a Rashba Interaction
Authors:
Wang, Xuhui; Manchon, Aurelien ( 0000-0002-4768-293X )
Abstract:
In a ferromagnetic metal layer, the coupled charge and spin diffusion equations are obtained in the presence of both Rashba spin-orbit interaction and magnetism. The misalignment between the magnetization and the nonequilibrium spin density induced by the Rashba field gives rise to Rashba spin torque acting on the ferromagnetic order parameter. In a general form, we find that the Rashba torque consists of both in-plane and out-of-plane components, i.e., T=T Sy×m+T Sm×(y×m). Numerical simulations on a two-dimensional nanowire consider the impact of diffusion on the Rashba torque and reveal a large enhancement to the ratio T/T S for thin wires. Our theory provides an explanation for the mechanism driving the magnetization switching in a single ferromagnet as observed in the recent experiments. © 2012 American Physical Society.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Diffusive Spin Dynamics in Ferromagnetic Thin Films with a Rashba Interaction 2012, 108 (11) Physical Review Letters
Publisher:
American Physical Society (APS)
Journal:
Physical Review Letters
Issue Date:
13-Mar-2012
DOI:
10.1103/PhysRevLett.108.117201
ARXIV:
arXiv:1111.1216
Type:
Article
ISSN:
0031-9007; 1079-7114
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevLett.108.117201; http://arxiv.org/abs/1111.1216
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWang, Xuhuien
dc.contributor.authorManchon, Aurelienen
dc.date.accessioned2015-05-14T12:20:19Zen
dc.date.available2015-05-14T12:20:19Zen
dc.date.issued2012-03-13en
dc.identifier.citationDiffusive Spin Dynamics in Ferromagnetic Thin Films with a Rashba Interaction 2012, 108 (11) Physical Review Lettersen
dc.identifier.issn0031-9007en
dc.identifier.issn1079-7114en
dc.identifier.doi10.1103/PhysRevLett.108.117201en
dc.identifier.urihttp://hdl.handle.net/10754/552864en
dc.description.abstractIn a ferromagnetic metal layer, the coupled charge and spin diffusion equations are obtained in the presence of both Rashba spin-orbit interaction and magnetism. The misalignment between the magnetization and the nonequilibrium spin density induced by the Rashba field gives rise to Rashba spin torque acting on the ferromagnetic order parameter. In a general form, we find that the Rashba torque consists of both in-plane and out-of-plane components, i.e., T=T Sy×m+T Sm×(y×m). Numerical simulations on a two-dimensional nanowire consider the impact of diffusion on the Rashba torque and reveal a large enhancement to the ratio T/T S for thin wires. Our theory provides an explanation for the mechanism driving the magnetization switching in a single ferromagnet as observed in the recent experiments. © 2012 American Physical Society.en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevLett.108.117201en
dc.relation.urlhttp://arxiv.org/abs/1111.1216en
dc.rightsArchived with thanks to Physical Review Lettersen
dc.titleDiffusive Spin Dynamics in Ferromagnetic Thin Films with a Rashba Interactionen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.identifier.arxividarXiv:1111.1216en
kaust.authorWang, Xuhuien
kaust.authorManchon, Aurelienen
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