Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires
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...
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sg-ntu-dr.10356-839322023-02-28T19:39:16Z Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires Meng, Zhaoliang He, Shikun Huang, Lisen Qiu, Jinjun Zhou, Tiejun Panagopoulos, Christos Han, Guchang Teo, Kie-Leong School of Physical and Mathematical Sciences Multilayers Nanowires 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. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2017-07-17T05:55:44Z 2019-12-06T15:34:52Z 2017-07-17T05:55:44Z 2019-12-06T15:34:52Z 2016 Journal Article 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-. 0003-6951 https://hdl.handle.net/10356/83932 http://hdl.handle.net/10220/42882 10.1063/1.4964261 en Applied Physics Letters © 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: [http://dx.doi.org/10.1063/1.4964261]. 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. 5 p. application/pdf |
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Multilayers Nanowires Meng, Zhaoliang He, Shikun Huang, Lisen Qiu, Jinjun Zhou, Tiejun Panagopoulos, Christos Han, Guchang Teo, Kie-Leong Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires |
| description |
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. |
| author2 |
School of Physical and Mathematical Sciences |
| author_facet |
School of Physical and Mathematical Sciences Meng, Zhaoliang He, Shikun Huang, Lisen Qiu, Jinjun Zhou, Tiejun Panagopoulos, Christos Han, Guchang Teo, Kie-Leong |
| format |
Article |
| author |
Meng, Zhaoliang He, Shikun Huang, Lisen Qiu, Jinjun Zhou, Tiejun Panagopoulos, Christos Han, Guchang Teo, Kie-Leong |
| author_sort |
Meng, Zhaoliang |
| title |
Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires |
| title_short |
Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires |
| title_full |
Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires |
| title_fullStr |
Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires |
| title_full_unstemmed |
Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires |
| title_sort |
current induced domain wall motion in antiferromagnetically coupled (co70fe30/pd) multilayer nanowires |
| publishDate |
2017 |
| url |
https://hdl.handle.net/10356/83932 http://hdl.handle.net/10220/42882 |
| _version_ |
1759857298804572160 |