Current-induced torques generated by metal oxides

Kazuya Ando

doi:10.1117/12.2567055

20 August 2020 Current-induced torques generated by metal oxides

Kazuya Ando

Proceedings Volume 11470, Spintronics XIII; 114701A (2020) https://doi.org/10.1117/12.2567055
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

We show that the current-induced torque generated can be significantly enhanced by the oxidation of metals. The oxidation allows efficient generation of the current-induced torques using Cu, a light metal with weak spin-orbit coupling [1]. We also show that the torque efficiency of ferromagnetic-metal/Cu-oxide bilayers can be maximized by a fine tuning of the oxidation level of the Cu layer [2]. The origin of the maximization is attributed to the enhancement of the interface spin-orbit coupling, showing that the bulk spin-orbit coupling of the oxidized Cu layer plays a minor role in the generation of the torque generation by naturally oxidized Cu. [1] H. An, Y. Kageyama, Y. Kanno, N. Enishi and K. Ando, Nature Communications 7, 13069 (2016). [2] Y. Kageyama, Y. Tazaki, H. An, T. Harumoto, T. Gao, J. Shi, and K. Ando, Science Advances 5, eaax4278 (2019).

Conference Presentation

Citation Download Citation

Kazuya Ando "Current-induced torques generated by metal oxides", Proc. SPIE 11470, Spintronics XIII, 114701A (20 August 2020); https://doi.org/10.1117/12.2567055

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available