Temperature dependence of spin-orbit torques in Cu-Au alloys

Handle URI:
http://hdl.handle.net/10754/623113
Title:
Temperature dependence of spin-orbit torques in Cu-Au alloys
Authors:
Wen, Yan; Wu, Jun; Li, Peng ( 0000-0001-8633-9045 ) ; Zhang, Qiang; Zhao, Yuelei; Manchon, Aurelien ( 0000-0002-4768-293X ) ; Xiao, John Q.; Zhang, Xixiang ( 0000-0002-3478-6414 )
Abstract:
We investigated current driven spin-orbit torques in Cu40Au60/Ni80Fe20/Ti layered structures with in-plane magnetization. We have demonstrated a reliable and convenient method to separate dampinglike torque and fieldlike torque by using the second harmonic technique. It is found that the dampinglike torque and fieldlike torque depend on temperature very differently. Dampinglike torque increases with temperature, while fieldlike torque decreases with temperature, which are different from results obtained previously in other material systems. We observed a nearly linear dependence between the spin Hall angle and longitudinal resistivity, suggesting that skew scattering may be the dominant mechanism of spin-orbit torques.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Wen Y, Wu J, Li P, Zhang Q, Zhao Y, et al. (2017) Temperature dependence of spin-orbit torques in Cu-Au alloys. Physical Review B 95. Available: http://dx.doi.org/10.1103/PhysRevB.95.104403.
Publisher:
American Physical Society (APS)
Journal:
Physical Review B
Issue Date:
7-Mar-2017
DOI:
10.1103/PhysRevB.95.104403
Type:
Article
ISSN:
2469-9950; 2469-9969
Sponsors:
The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) under Grant No. CRF 2015 2626 CRG4. The work at the University of Delaware was supported by the US National Science Foundation under Division of Materials Research Grant No. 1505192.
Additional Links:
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.104403
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWen, Yanen
dc.contributor.authorWu, Junen
dc.contributor.authorLi, Pengen
dc.contributor.authorZhang, Qiangen
dc.contributor.authorZhao, Yueleien
dc.contributor.authorManchon, Aurelienen
dc.contributor.authorXiao, John Q.en
dc.contributor.authorZhang, Xixiangen
dc.date.accessioned2017-04-10T07:49:52Z-
dc.date.available2017-04-10T07:49:52Z-
dc.date.issued2017-03-07en
dc.identifier.citationWen Y, Wu J, Li P, Zhang Q, Zhao Y, et al. (2017) Temperature dependence of spin-orbit torques in Cu-Au alloys. Physical Review B 95. Available: http://dx.doi.org/10.1103/PhysRevB.95.104403.en
dc.identifier.issn2469-9950en
dc.identifier.issn2469-9969en
dc.identifier.doi10.1103/PhysRevB.95.104403en
dc.identifier.urihttp://hdl.handle.net/10754/623113-
dc.description.abstractWe investigated current driven spin-orbit torques in Cu40Au60/Ni80Fe20/Ti layered structures with in-plane magnetization. We have demonstrated a reliable and convenient method to separate dampinglike torque and fieldlike torque by using the second harmonic technique. It is found that the dampinglike torque and fieldlike torque depend on temperature very differently. Dampinglike torque increases with temperature, while fieldlike torque decreases with temperature, which are different from results obtained previously in other material systems. We observed a nearly linear dependence between the spin Hall angle and longitudinal resistivity, suggesting that skew scattering may be the dominant mechanism of spin-orbit torques.en
dc.description.sponsorshipThe research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) under Grant No. CRF 2015 2626 CRG4. The work at the University of Delaware was supported by the US National Science Foundation under Division of Materials Research Grant No. 1505192.en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.104403en
dc.rightsArchived with thanks to Physical Review Ben
dc.titleTemperature dependence of spin-orbit torques in Cu-Au alloysen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Ben
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionUniversity of Delaware, Department of Physics and Astronomy, Newark, DE, 19716, , United Statesen
kaust.authorWen, Yanen
kaust.authorLi, Pengen
kaust.authorZhang, Qiangen
kaust.authorZhao, Yueleien
kaust.authorManchon, Aurelienen
kaust.authorZhang, Xixiangen
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