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Switching of Perpendicular Magnetization via ac Spin-Orbit Torque

Authors
Go, GyungchoonLee, Seung-JaeLee, Kyung-Jin
Issue Date
21-9월-2018
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW APPLIED, v.10, no.3
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW APPLIED
Volume
10
Number
3
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/73070
DOI
10.1103/PhysRevApplied.10.034047
ISSN
2331-7019
Abstract
We theoretically and numerically investigate the switching of perpendicular magnetization by ac spin-orbit torque. We find that the threshold switching current for ac spin-orbit torque is much smaller than that for dc spin-orbit torque. Moreover, the ac spin-orbit torque acts like an effective out-of-plane field in the rotating frame and thus allows field-free deterministic switching of perpendicular magnetization. The ac spin-orbit torque scheme will be useful for energy-efficient operation of spin-orbit torque devices.
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