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Title: Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires
Authors: Meng, Zhaoliang
He, Shikun
Huang, Lisen
Qiu, Jinjun
Zhou, Tiejun
Panagopoulos, Christos
Han, Guchang
Teo, Kie-Leong
Keywords: Multilayers
Issue Date: 2016
Source: Meng, Z., He, S., Huang, L., Qiu, J., Zhou, T., Panagopoulos, C., et al. (2016). Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires. Applied Physics Letters, 109(14), 142403-.
Series/Report no.: Applied Physics Letters
Abstract: We investigate the current induced domain wall (DW) motion in the ultrathin CoFe/Pd multilayer based synthetically antiferromagnetic (SAF) structure nanowires by anomalous Hall effect measurement. The threshold current density (Jth) for the DW displacement decreases and the DW velocity (v) increases accordingly with the exchange coupling Jex between the top and bottom ferromagnetic CoFe/Pd multilayers. The lowest Jth = 9.3 x 10^10 A/m2 and a maximum v = 150 m/s with J = 1.5 x 10^12 A/m2 are achieved due to the exchange coupling torque (ECT) generated in the SAF structure. The strength of ECT is dependent on both of Jex and the strong spin-orbit torque mainly generated by Ta layer.
ISSN: 0003-6951
DOI: 10.1063/1.4964261
Rights: © 2016 American Institute of Physics (AIP). This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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