| Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer | |
| Quan, Jiazhi1,2; Zhao, Xiaotian1; Liu, Wei1; Liu, Long1,2; Song, Yuhang1,2; Li, Yang1,2; Ma, Jun1,2; Li, Shuqiao1; Zhao, Xinguo1; Zhang, Zhidong1 | |
| Corresponding Author | Zhao, Xiaotian(xtzhao@imr.ac.cn) |
| 2020-11-30 | |
| Source Publication | APPLIED PHYSICS LETTERS
 |
| ISSN | 0003-6951 |
| Volume | 117Issue:22Pages:5 |
| Abstract | Alloying a heavy metal (HM) layer is a useful approach to enhance the current-spin converting efficiency xi (SH) while keeping a relatively low resistance for spin-orbit torque (SOT) based devices. In this work, we report the enhancement of xi (SH) and nonlinear modification of the Dzyaloshinskii-Moriya interaction (DMI) by alloying Pt with Cr in a Pt100-xCrx/Co/AlOx trilayer. The maximum of xi (SH) is found at the composition of Pt75Cr25. At the compositions of Pt75Cr25 and Pt50Cr50, the DMI constant |D| is strongly shifted in the opposite sign, implying ferromagnetic coupling and antiferromagnetic coupling existing in the heavy metal layer can both influence the DMI. Finally, the current-driven switching behavior is observed by the magneto-optical effect. This work shows that adjusting the composition of the magnetic alloyed HM layer is an efficient approach to obtain an optimized SOT performance. |
| Funding Organization | State Key Project of Research and Development of China ; National Nature Science Foundation of China |
| DOI | 10.1063/5.0030880 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | State Key Project of Research and Development of China[2017YFA0206302] ; National Nature Science Foundation of China[51590883] ; National Nature Science Foundation of China[52031014] ; National Nature Science Foundation of China[51771198] ; National Nature Science Foundation of China[51801212] |
| WOS Research Area | Physics |
| WOS Subject | Physics, Applied |
| WOS ID | WOS:000595819900001 |
| Publisher | AMER INST PHYSICS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/141414 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhao, Xiaotian |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Quan, Jiazhi,Zhao, Xiaotian,Liu, Wei,et al. Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer[J]. APPLIED PHYSICS LETTERS,2020,117(22):5. |
| APA | Quan, Jiazhi.,Zhao, Xiaotian.,Liu, Wei.,Liu, Long.,Song, Yuhang.,...&Zhang, Zhidong.(2020).Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer.APPLIED PHYSICS LETTERS,117(22),5. |
| MLA | Quan, Jiazhi,et al."Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer".APPLIED PHYSICS LETTERS 117.22(2020):5. |
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