Reduced Switching Current with a Light Metal in a Tri-layer Spin-orbit Torque Device

Yu Hui Wu, Chih Wei Cheng, Yu Lon Lin, Min Cheng Chen, Yuan Chieh Tseng*

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

The use of a tri-layer structure and light metals have each received much research attention in spin-orbit torque (SOT) technology. We combine these two approaches by placing an ultra-thin (1 nm) Cu adjacent to the bottom ferromagnetic layer in a tri-layer SOT device. This can reduce the switching current by ∼30% compared to the conventional bi-layer device due to enhanced SOT efficiency. This advantage is more obvious under a unipolar condition and it is attributed to a slightly asymmetric interface caused by the Cu insertion. By magneto-optical Kerr effect microscopy, we also observe a domain reversal mechanism distinct from the bi-layer case.

原文English
主出版物標題2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9798350338362
DOIs
出版狀態Published - 2023
事件2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Sendai, Japan
持續時間: 15 5月 202319 5月 2023

出版系列

名字2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings

Conference

Conference2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023
國家/地區Japan
城市Sendai
期間15/05/2319/05/23

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