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

Riku Iimori; Sora Obinata; Taishiro Yamazaki; Akihiro Mitsuda; Takashi Kimura

doi:10.1109/TMAG.2023.3283467

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

Riku Iimori, Sora Obinata, Taishiro Yamazaki, Akihiro Mitsuda, Takashi Kimura

Condensed Matter Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Article number	1400305
Journal	IEEE Transactions on Magnetics
Volume	59
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2023.3283467
Publication status	Published - Nov 1 2023

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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abstract = "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.",

author = "Riku Iimori and Sora Obinata and Taishiro Yamazaki and Akihiro Mitsuda and Takashi Kimura",

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AU - Iimori, Riku

AU - Obinata, Sora

AU - Yamazaki, Taishiro

AU - Mitsuda, Akihiro

AU - Kimura, Takashi

PY - 2023/11/1

Y1 - 2023/11/1

N2 - 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.

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

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