| Field-Free Spin-Orbit Torque Switching of Perpendicular Magnetization by Making Full Use of Spin Hall Effect | |
| Song, Yuhang1,2; Dai, Zhiming3,4; Liu, Long1; Wu, Jinxiang1,2; Li, Tingting1,2; Zhao, Xiaotian1; Liu, Wei1; Zhang, Zhidong1 | |
| Corresponding Author | Zhao, Xiaotian(xtzhao@imr.ac.cn) ; Liu, Wei(wliu@imr.ac.cn) |
| 2022-11-09 | |
| Source Publication | ADVANCED ELECTRONIC MATERIALS
 |
| ISSN | 2199-160X |
| Pages | 8 |
| Abstract | Field-free switching is a critical issue for spin-orbit torque-induced magnetic random-access memory (SOT-MRAM) with perpendicular magnetic anisotropic (PMA) towards application. If only the spin-polarized electrons along the y-direction (sigma(y)) are used, deterministic switching cannot be achieved, as the electron polarization direction and easy magnetization direction are orthogonal. In this work, z-direction polarized electrons (sigma(z)) produced by the spin Hall effect are utilized to provide the switching direction and sigma(y) provides the propulsion of magnetic reorientation. With the cooperation of sigma(y) and sigma(z) by the spin Hall effect, field-free switching is achieved. To combine with magnetic tunnel junction (MTJ), a model is proposed, in which heavy metals providing sigma(z) are deposited on MTJ with asymmetric writing line widths. This model retains the characteristics of read-write separation and realizes deterministic switching based on SOT. |
| Keyword | field-free switching perpendicular magnetic anisotropy spin Hall effect spin-orbit torque spin-polarized electrons |
| Funding Organization | National Nature Science Foundation of China |
| DOI | 10.1002/aelm.202200987 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Nature Science Foundation of China[52031014] ; National Nature Science Foundation of China[52171196] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000880377000001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/176554 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhao, Xiaotian; Liu, Wei |
| Affiliation | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Huaiyin Normal Univ, Dept Phys, Huaian 223300, Peoples R China 4.Huaiyin Normal Univ, Jiangsu Key Lab Modern Measurement Technol & Inte, Huaian 223300, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Yuhang,Dai, Zhiming,Liu, Long,et al. Field-Free Spin-Orbit Torque Switching of Perpendicular Magnetization by Making Full Use of Spin Hall Effect[J]. ADVANCED ELECTRONIC MATERIALS,2022:8. |
| APA | Song, Yuhang.,Dai, Zhiming.,Liu, Long.,Wu, Jinxiang.,Li, Tingting.,...&Zhang, Zhidong.(2022).Field-Free Spin-Orbit Torque Switching of Perpendicular Magnetization by Making Full Use of Spin Hall Effect.ADVANCED ELECTRONIC MATERIALS,8. |
| MLA | Song, Yuhang,et al."Field-Free Spin-Orbit Torque Switching of Perpendicular Magnetization by Making Full Use of Spin Hall Effect".ADVANCED ELECTRONIC MATERIALS (2022):8. |
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