Spin-orbit torque in two-dimensional antiferromagnetic topological insulators

Handle URI:
http://hdl.handle.net/10754/622846
Title:
Spin-orbit torque in two-dimensional antiferromagnetic topological insulators
Authors:
Ghosh, S.; Manchon, Aurelien ( 0000-0002-4768-293X )
Abstract:
We investigate spin transport in two-dimensional ferromagnetic (FTI) and antiferromagnetic (AFTI) topological insulators. In the presence of an in-plane magnetization AFTI supports zero energy modes, which enables topologically protected edge conduction at low energy. We address the nature of current-driven spin torque in these structures and study the impact of spin-independent disorder. Interestingly, upon strong disorder the spin torque develops an antidamping component (i.e., even upon magnetization reversal) along the edges, which could enable current-driven manipulation of the antiferromagnetic order parameter. This antidamping torque decreases when increasing the system size and when the system enters the trivial insulator regime.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Ghosh S, Manchon A (2017) Spin-orbit torque in two-dimensional antiferromagnetic topological insulators. Physical Review B 95. Available: http://dx.doi.org/10.1103/PhysRevB.95.035422.
Publisher:
American Physical Society (APS)
Journal:
Physical Review B
KAUST Grant Number:
OSR-2015- CRG4-2626
Issue Date:
24-Jan-2017
DOI:
10.1103/PhysRevB.95.035422
Type:
Article
ISSN:
2469-9950; 2469-9969
Sponsors:
This work was supported by the King Abdullah University of Science and Technology (KAUST) through the Office of Sponsored Research (OSR) [Grant No. OSR-2015- CRG4-2626].
Additional Links:
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.035422
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorGhosh, S.en
dc.contributor.authorManchon, Aurelienen
dc.date.accessioned2017-02-07T08:28:38Z-
dc.date.available2017-02-07T08:28:38Z-
dc.date.issued2017-01-24en
dc.identifier.citationGhosh S, Manchon A (2017) Spin-orbit torque in two-dimensional antiferromagnetic topological insulators. Physical Review B 95. Available: http://dx.doi.org/10.1103/PhysRevB.95.035422.en
dc.identifier.issn2469-9950en
dc.identifier.issn2469-9969en
dc.identifier.doi10.1103/PhysRevB.95.035422en
dc.identifier.urihttp://hdl.handle.net/10754/622846-
dc.description.abstractWe investigate spin transport in two-dimensional ferromagnetic (FTI) and antiferromagnetic (AFTI) topological insulators. In the presence of an in-plane magnetization AFTI supports zero energy modes, which enables topologically protected edge conduction at low energy. We address the nature of current-driven spin torque in these structures and study the impact of spin-independent disorder. Interestingly, upon strong disorder the spin torque develops an antidamping component (i.e., even upon magnetization reversal) along the edges, which could enable current-driven manipulation of the antiferromagnetic order parameter. This antidamping torque decreases when increasing the system size and when the system enters the trivial insulator regime.en
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST) through the Office of Sponsored Research (OSR) [Grant No. OSR-2015- CRG4-2626].en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.035422en
dc.rightsArchived with thanks to Physical Review Ben
dc.titleSpin-orbit torque in two-dimensional antiferromagnetic topological insulatorsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Ben
dc.eprint.versionPublisher's Version/PDFen
kaust.authorGhosh, S.en
kaust.authorManchon, Aurelienen
kaust.grant.numberOSR-2015- CRG4-2626en
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