| Field-free spin-orbit torque switching induced by interlayer exchange coupling in Pt/Co/Ru/Ni/Pt multilayer | |
| Dai, Zhiming1,2,3; Liu, Wei3; Zhao, Xiaotian3; Liu, Long3; Song, Yuhang3; Zhang, Zhidong3 | |
| Corresponding Author | Liu, Wei(wliu@imr.ac.cn) |
| 2021-12-28 | |
| Source Publication | JOURNAL OF APPLIED PHYSICS
 |
| ISSN | 0021-8979 |
| Volume | 130Issue:24Pages:8 |
| Abstract | High-efficient operation of spin-orbit torque (SOT) is central for the exciting field of spin-orbitronics. To realize a deterministic field-free SOT switching, here, we investigate the enhancement mechanism of SOT with the interlayer exchange coupling in a Pt/Co/Ru/Ni/Pt multilayer. We find that the decrease of the domain wall energy in an interlayer exchange coupling system is the pivotal reason for achieving current-induced field-free domain wall switching. Comparing with the direct ferromagnetic couplings, the switching ratio and efficiency present a significant improvement in the interlayer exchange coupling system. Combining micromagnetic simulations and magneto-optical Kerr effect measurements, the domain wall motions are investigated and the switching mechanism is confirmed to be the domain wall depinning regime. Furthermore, the SOT switching direction is proven to be dominated by the field-modulated domain wall motions. This work paves a potential way toward practical spin-orbit torque-based memory, oscillating, and logic devices. |
| Funding Organization | State Key Project of Research and Development of China ; National Nature Science Foundation of China ; Jiangsu Universities Natural Science Foundation |
| DOI | 10.1063/5.0077515 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | State Key Project of Research and Development of China[2017YFA0206302] ; National Nature Science Foundation of China[52031014] ; National Nature Science Foundation of China[51771198] ; National Nature Science Foundation of China[52171196] ; National Nature Science Foundation of China[51801212] ; Jiangsu Universities Natural Science Foundation[21KJB140017] |
| WOS Research Area | Physics |
| WOS Subject | Physics, Applied |
| WOS ID | WOS:000733063400002 |
| Publisher | AIP Publishing |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/167266 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Wei |
| Affiliation | 1.Huaiyin Normal Univ, Dept Phys, Huaian 223300, Peoples R China 2.Huaiyin Normal Univ, Jiangsu Key Lab Modern Measurement Technol & Inte, Huaian 223300, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Dai, Zhiming,Liu, Wei,Zhao, Xiaotian,et al. Field-free spin-orbit torque switching induced by interlayer exchange coupling in Pt/Co/Ru/Ni/Pt multilayer[J]. JOURNAL OF APPLIED PHYSICS,2021,130(24):8. |
| APA | Dai, Zhiming,Liu, Wei,Zhao, Xiaotian,Liu, Long,Song, Yuhang,&Zhang, Zhidong.(2021).Field-free spin-orbit torque switching induced by interlayer exchange coupling in Pt/Co/Ru/Ni/Pt multilayer.JOURNAL OF APPLIED PHYSICS,130(24),8. |
| MLA | Dai, Zhiming,et al."Field-free spin-orbit torque switching induced by interlayer exchange coupling in Pt/Co/Ru/Ni/Pt multilayer".JOURNAL OF APPLIED PHYSICS 130.24(2021):8. |
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