| Autor: |
Chen, Shiwei, Rahul, Mishra, Chen, Huanjian, Yang, Hyunsoo, Qiu, Xuepeng |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
J. Phys. D: Appl. Phys. 55, 095001 (2022) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1088/1361-6463/ac33d9 |
| Popis: |
We fabricated a wedge-shaped Pt/Co/Pt device with perpendicular magnetic anisotropy and manifested that the Co magnetization can be solely switched by spin-orbit torque without any magnetic field. Similar to the synaptic weight, we observed that the state of Co magnetization (presented by the anomalous Hall resistance RH) of the wedged Pt/Co/Pt device can be tuned continuously with a large number of nonvolatile levels by applied pulse currents. Furthermore, we studied the synaptic plasticity of the wedged Pt/Co/Pt device, including the excitatory postsynaptic potentials or inhibitory postsynaptic potentials and spiking-time-dependent plasticity. The work elucidates the promise of the wedged Pt/Co/Pt device as a candidate for a new type of artificial synaptic device that is induced by a spin current and paves a substantial pathway toward the combination of spintronics and synaptic devices. |
| Databáze: |
arXiv |
| Externí odkaz: |
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