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

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    PhysRevB.95.104403.pdf
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    Type
    Article
    Authors
    Wen, Yan
    Wu, Jun
    Li, Peng cc
    Zhang, Qiang cc
    Zhao, Yuelei
    Manchon, Aurelien cc
    Xiao, John Q.
    Zhang, Xixiang cc
    KAUST Department
    Imaging and Characterization Core Lab
    Material Science and Engineering Program
    Nanofabrication Core Lab
    Physical Science and Engineering (PSE) Division
    Spintronics Theory Group
    Thin Films & Characterization
    Date
    2017-03-06
    Permanent link to this record
    http://hdl.handle.net/10754/623113
    
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    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.
    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.
    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.
    Publisher
    American Physical Society (APS)
    Journal
    Physical Review B
    DOI
    10.1103/PhysRevB.95.104403
    Additional Links
    http://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.104403
    ae974a485f413a2113503eed53cd6c53
    10.1103/PhysRevB.95.104403
    Scopus Count
    Collections
    Nanofabrication Core Lab; Articles; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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