Magnon-mediated Dzyaloshinskii-Moriya torque in homogeneous ferromagnets

Handle URI:
http://hdl.handle.net/10754/346731
Title:
Magnon-mediated Dzyaloshinskii-Moriya torque in homogeneous ferromagnets
Authors:
Manchon, Aurelien ( 0000-0002-4768-293X ) ; Ndiaye, Papa Birame; Moon, Jung-Hwan; Lee, Hyun-Woo; Lee, Kyung-Jin
Abstract:
In thin magnetic layers with structural inversion asymmetry and spin-orbit coupling, the Dzyaloshinskii-Moriya interaction arises at the interface. When a spin-wave current jm flows in a system with a homogeneous magnetization m, this interaction produces an effective fieldlike torque of the form TFLm×(z×jm) as well as a dampinglike torque, TDLm×[(z×jm)×m], the latter only in the presence of spin-wave relaxation (z is normal to the interface). These torques mediated by the magnon flow can reorient the time-averaged magnetization direction and display a number of similarities with the torques arising from the electron flow in a magnetic two-dimensional electron gas with Rashba spin-orbit coupling. This magnon-mediated spin-orbit torque can be efficient in the case of magnons driven by a thermal gradient.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Magnon-mediated Dzyaloshinskii-Moriya torque in homogeneous ferromagnets 2014, 90 (22) Physical Review B
Publisher:
American Physical Society (APS)
Journal:
Physical Review B
Issue Date:
1-Dec-2014
DOI:
10.1103/PhysRevB.90.224403
Type:
Article
ISSN:
1098-0121; 1550-235X
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevB.90.224403
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorManchon, Aurelienen
dc.contributor.authorNdiaye, Papa Birameen
dc.contributor.authorMoon, Jung-Hwanen
dc.contributor.authorLee, Hyun-Wooen
dc.contributor.authorLee, Kyung-Jinen
dc.date.accessioned2015-03-17T06:10:44Zen
dc.date.available2015-03-17T06:10:44Zen
dc.date.issued2014-12-01en
dc.identifier.citationMagnon-mediated Dzyaloshinskii-Moriya torque in homogeneous ferromagnets 2014, 90 (22) Physical Review Ben
dc.identifier.issn1098-0121en
dc.identifier.issn1550-235Xen
dc.identifier.doi10.1103/PhysRevB.90.224403en
dc.identifier.urihttp://hdl.handle.net/10754/346731en
dc.description.abstractIn thin magnetic layers with structural inversion asymmetry and spin-orbit coupling, the Dzyaloshinskii-Moriya interaction arises at the interface. When a spin-wave current jm flows in a system with a homogeneous magnetization m, this interaction produces an effective fieldlike torque of the form TFLm×(z×jm) as well as a dampinglike torque, TDLm×[(z×jm)×m], the latter only in the presence of spin-wave relaxation (z is normal to the interface). These torques mediated by the magnon flow can reorient the time-averaged magnetization direction and display a number of similarities with the torques arising from the electron flow in a magnetic two-dimensional electron gas with Rashba spin-orbit coupling. This magnon-mediated spin-orbit torque can be efficient in the case of magnons driven by a thermal gradient.en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevB.90.224403en
dc.rightsArchived with thanks to Physical Review Ben
dc.titleMagnon-mediated Dzyaloshinskii-Moriya torque in homogeneous ferromagnetsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Ben
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Materials Science and Engineering, Korea University, Seoul 136-701, Koreaen
dc.contributor.institutionPCTP and Department of Physics, Pohang University of Science and Technology, Kyungbuk 790-784, Koreaen
dc.contributor.institutionKU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-713, Koreaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorManchon, Aurelienen
kaust.authorNdiaye, Papa Birameen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.