Electrically driven spin torque and dynamical Dzyaloshinskii-Moriya interaction in magnetic bilayer systems

Akihito Takeuchi, Shigeyasu Mizushima, Masahito Mochizuki

研究成果: Article

抄録

Efficient control of magnetism with electric means is a central issue of current spintronics research, which opens an opportunity to design integrated spintronic devices. However, recent well-studied methods are mostly based on electric-current injection, and they are inevitably accompanied by considerable energy losses through Joule heating. Here we theoretically propose a way to exert spin torques into magnetic bilayer systems by application of electric voltages through taking advantage of the Rashba spin-orbit interaction. The torques resemble the well-known electric-current-induced torques, providing similar controllability of magnetism but without Joule-heating energy losses. The torques also turn out to work as an interfacial Dzyaloshinskii-Moriya interaction which enables us to activate and create noncollinear magnetism like skyrmions by electric-voltage application. Our proposal offers an efficient technique to manipulate magnetizations in spintronics devices without Joule-heating energy losses.

元の言語English
ページ数1
ジャーナルScientific reports
9
発行部数1
DOI
出版物ステータスPublished - 2019 7 2

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Torque
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これを引用

Electrically driven spin torque and dynamical Dzyaloshinskii-Moriya interaction in magnetic bilayer systems. / Takeuchi, Akihito; Mizushima, Shigeyasu; Mochizuki, Masahito.

:: Scientific reports, 巻 9, 番号 1, 02.07.2019.

研究成果: Article

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