凝聚态物理
同质结
磁化
材料科学
自旋电子学
磁性
居里温度
范德瓦尔斯力
矫顽力
磁晶各向异性
焦耳加热
铁磁性
旋转扭矩传递
磁各向异性
磁场
物理
兴奋剂
量子力学
复合材料
分子
作者
Haifeng Lin,Faguang Yan,Ce Hu,Yuanhui Zheng,Yu Sheng,Wenkai Zhu,Ziao Wang,Hang Zheng,Kaiyou Wang
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:14 (6): 2352-2358
被引量:12
摘要
Among the numerous two-dimensional van der Waals (vdW) magnetic materials, Fe3GeTe2 (FGT), due to its outstanding properties such as metallicity, high Curie temperature and strong perpendicular magnetic anisotropy, has quickly emerged as a candidate with the most potential for the fabrication of all-vdW spintronic devices. Here, we fabricated a simple vertical homojunction based on two few-layer exfoliated FGT flakes. Under a certain range of external magnetic fields, the magnetization reversal can be achieved by applying a negative or positive pulse current, which can reduce the coercivity through the spin orbit torque of FGT itself in addition to the Joule heat. Moreover, the asymmetrical switching current is caused by the spin transfer torque in the homojunction. As the temperature increases, the magnetization reversal can be observed at a smaller external magnetic field. Our demonstrations of the current-assisted magnetization reversal under a magnetic field in all-vdW structures may provide support for the potential application of vdW magnetism.
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