Experimental and Theoretical Evaluation for Pressure Effects on Spin Hall Effect in Pt

被引：0
|
作者：
Iimori, Riku [1 ]
Obinata, Sora [1 ]
Yamazaki, Taishiro [1 ]
Mitsuda, Akihiro [1 ]
Kimura, Takashi [1 ]
机构：
[1] Kyushu Univ, Dept Phys, Fukuoka 8190395, Japan
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2023年 / 59卷 / 11期
基金：
日本科学技术振兴机构; 日本学术振兴会;
关键词：
Magnetoresistance; pressure effect; spin Hall effect (SHE); spin injection;
D O I：
10.1109/TMAG.2023.3283467
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have experimentally and theoretically investigated the influence of pressure on the spin Hall effect (SHE) for the Pt. The experimental results using a laterally configured Pt/CoFeB hybrid nanostructure suggest that the spin Hall angle for the Pt is almost constant under pressure up to 2 GPa. The theoretical study based on the first-principles calculation found the spin Hall conductivity for the Pt shows a 10% reduction due to the pressure application of 75 GPa, supporting the experimental results. These results imply that the enhanced spin Hall signal in the dynamical spin injection due to the pressure application is caused by the enhancement of the interfacial spin mixing conductance.
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页数：5
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