The ability of spintronic devices to utilize an electric current for manipulating the magnetization has resulted in large-scale developments, such as magnetic random access memories and boosted the spintronic research area. In this regard, over the last decade, magnetization manipulation using spin-orbit torque has been devoted a lot of research attention as it shows a great promise for future ultrafast and power efficient magnetic memories. In this review, we summarize the latest advancements in spin-orbit torque research and highlight some of the technical challenges for practical spin-orbit torque devices. We will first introduce the basic concepts and highlight the latest material choices for spin-orbit torque devices. Then, we will summarize the important advancements in the study of magnetization switching dynamics using spin-orbit torque, which are important from scientific as well as technological aspects. The final major section focuses on the concept of external assist field-free spin-orbit torque switching which is a requirement for practical spin-orbit torque devices.
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Recent advances in spin-orbit torques: Moving towards device applications
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September 2018
Review Article|
September 05 2018
Recent advances in spin-orbit torques: Moving towards device applications
Rajagopalan Ramaswamy
;
Rajagopalan Ramaswamy
Department of Electrical and Computer Engineering, National University of Singapore
, 117576 Singapore
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Jong Min Lee;
Jong Min Lee
Department of Electrical and Computer Engineering, National University of Singapore
, 117576 Singapore
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Kaiming Cai;
Kaiming Cai
Department of Electrical and Computer Engineering, National University of Singapore
, 117576 Singapore
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Hyunsoo Yang
Hyunsoo Yang
Department of Electrical and Computer Engineering, National University of Singapore
, 117576 Singapore
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Appl. Phys. Rev. 5, 031107 (2018)
Article history
Received:
May 26 2018
Accepted:
August 12 2018
Citation
Rajagopalan Ramaswamy, Jong Min Lee, Kaiming Cai, Hyunsoo Yang; Recent advances in spin-orbit torques: Moving towards device applications. Appl. Phys. Rev. 1 September 2018; 5 (3): 031107. https://doi.org/10.1063/1.5041793
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