| Autor: |
Yin, Xiaomiao, Wei, Lujun, Liu, Pai, Yang, Jiajv, Zhang, Pengchao, Peng, JinCheng, Huang, Fei, Liu, Ruobai, Du, Jun, Pu, Yong |
| Rok vydání: |
2022 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
Spin-orbit torque (SOT) provides an efficient way to achieve charge-to-spin conversion and can switch perpendicular magnetization, which is essential for designing novel energy-efficient spintronic devices. An out-of-plane SOT could directly switch perpendicular magnetization. Encouragingly, field-free perpendicular magnetization switching of a two-dimensional (2D) material WTe2/ferromagnet (FM) bilayer has been reported recently, but the working temperature (200 K) is below room temperature. Here, we report the field-free perpendicular magnetization switching carried out at room temperature on a WTe2/Pt/Co/Pt multilayer film. Controlled experiments confirm that the field-free switching is caused by the in-plane antidamping SOT generated in the Pt/Co/Pt multilayer and the out-of-plane generated in the a-axis WTe2 thin film. This work offers a potential method for using spintronic devices made of two-dimensional materials at room temperature. |
| Databáze: |
arXiv |
| Externí odkaz: |
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