| Autor: |
Weihao Li, Xiukai Lan, Xionghua Liu, Enze Zhang, Yongcheng Deng, Kaiyou Wang |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Chinese Physics B. 31:117106 |
| ISSN: |
1674-1056 |
| Popis: |
Current-induced multilevel magnetization switching in ferrimagnetic spintronic devices is highly pursued for the application in neuromorphic computing. In this work, we demonstrate the switching plasticity in Co/Gd ferrimagnetic multilayers where the binary states magnetization switching induced by spin–orbit toque can be tuned into a multistate one as decreasing the domain nucleation barrier. Therefore, the switching plasticity can be tuned by the perpendicular magnetic anisotropy of the multilayers and the in-plane magnetic field. Moreover, we used the switching plasticity of Co/Gd multilayers for demonstrating spike timing-dependent plasticity and sigmoid-like activation behavior. This work gives useful guidance to design multilevel spintronic devices which could be applied in high-performance neuromorphic computing. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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