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Title: Spin-orbit torques in Co/Pd multilayer nanowires
Authors: Jamali, M.
Narayanapillai, K.
Qiu, X.
Loong, L.M.
Manchon, A.
Yang, H. 
Issue Date: 9-Dec-2013
Citation: Jamali, M., Narayanapillai, K., Qiu, X., Loong, L.M., Manchon, A., Yang, H. (2013-12-09). Spin-orbit torques in Co/Pd multilayer nanowires. Physical Review Letters 111 (24) : -. ScholarBank@NUS Repository.
Abstract: Current induced spin-orbit torques have been studied in ferromagnetic nanowires made of 20 nm thick Co/Pd multilayers with perpendicular magnetic anisotropy. Using Hall voltage and lock-in measurements, it is found that upon injection of an electric current both in-plane (Slonczewski-like) and perpendicular (fieldlike) torques build up in the nanowire. The torque efficiencies are found to be as large as 1.17 and 5 kOe at 108 A/cm2 for the in-plane and perpendicular components, respectively, which is surprisingly comparable to previous studies in ultrathin (∼1 nm) magnetic bilayers. We show that this result cannot be explained solely by spin Hall effect induced torque at the outer interfaces, indicating a probable contribution of the bulk of the Co/Pd multilayer. © 2013 American Physical Society.
Source Title: Physical Review Letters
ISSN: 00319007
DOI: 10.1103/PhysRevLett.111.246602
Appears in Collections:Staff Publications

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