Spin-Orbit Torque and Current-Driven Switching in Pt100-yTby/Co/AlOx Trilayers
文献类型：期刊论文
| 作者 | Wu, Jinxiang1,2; Zhao, Xiaotian1; Liu, Wei1; Li, Yang1,2; Liu, Long1; Ju, Hongzhan1,2; Song, Yuhang1; Ma, Jun1,2; Zhang, Zhidong1 |
| 刊名 | ADVANCED ELECTRONIC MATERIALS
 |
| 出版日期 | 2024-01-14 |
| 页码 | 8 |
| 关键词 | current-induced magnetization switching domain wall motion Dzyaloshinskii-Moriya interaction Pt-Tb alloy spin-orbit torque |
| ISSN号 | 2199-160X |
| DOI | 10.1002/aelm.202300726 |
| 通讯作者 | Zhao, Xiaotian(xtzhao@imr.ac.cn) ; Liu, Wei(wliu@imr.ac.cn) |
| 英文摘要 | To decrease the energy consumption for the electrical manipulation of magnetization, the enhancement of the spin Hall effect through alloying is widely investigated, but the use of rare earth elements is rarely mentioned. This work reports the modification of the spin Hall effect on Pt by doping rare earth Tb atoms. The spin-orbit torque (SOT) performance is significantly enhanced in Pt100-yTby alloyed heavy metal (HM) layer. Compared with the Tb-free sample, the damping-like effective field per unit current density increases to 1.9 times in the samples with Tb content between 5% and 10%. The critical current density for magnetization reversal is greatly reduced by 65% in a device with Pt87Tb13 HM layer and the in-plane assistant field as small as +/- 20 Oe is sufficient for the deterministic switching in the same device. By magneto-optical Kerr effect imaging, it is confirmed that the increased in-plane field can effectively compensate the Dzyaloshinskii-Moriya interaction (DMI), which not only helps to reduce the critical current, but also facilitates the domain wall motion and is beneficial for the switching process. All results show that the Pt-Tb alloy is a competitive candidate for low-power spintronic devices. |
| 资助项目 | National Natural Science Foundation of China[52031014] ; National Natural Science Foundation of China[52171196] ; National Natural Science Foundation of China[51971219] ; National Natural Science Foundation of China[52271193] ; National Nature Science Foundation of China |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001143285600001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; National Nature Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhao, Xiaotian; Liu, Wei |
| 作者单位 | 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 |
| 推荐引用方式 GB/T 7714 | Wu, Jinxiang,Zhao, Xiaotian,Liu, Wei,et al. Spin-Orbit Torque and Current-Driven Switching in Pt100-yTby/Co/AlOx Trilayers[J]. ADVANCED ELECTRONIC MATERIALS,2024:8. |
| APA | Wu, Jinxiang.,Zhao, Xiaotian.,Liu, Wei.,Li, Yang.,Liu, Long.,...&Zhang, Zhidong.(2024).Spin-Orbit Torque and Current-Driven Switching in Pt100-yTby/Co/AlOx Trilayers.ADVANCED ELECTRONIC MATERIALS,8. |
| MLA | Wu, Jinxiang,et al."Spin-Orbit Torque and Current-Driven Switching in Pt100-yTby/Co/AlOx Trilayers".ADVANCED ELECTRONIC MATERIALS (2024):8. |
入库方式： OAI收割
来源：金属研究所
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