Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars

Abstract Spin-orbit torque (SOT) induced by electric current has attracted extensive attention as an efficient method of controlling the magnetization in nanomagnetic structures. SOT-induced magnetization reversal is usually achieved with the aid of an in-plane bias magnetic field. In this paper, we...

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Autores principales:	Sihua Li, Sarjoosing Goolaup, Jaesuk Kwon, Feilong Luo, Weiliang Gan, Wen Siang Lew
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/23a8ed83ad7846e491fe21ce20591903
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spelling	oai:doaj.org-article:23a8ed83ad7846e491fe21ce205919032021-12-02T16:07:48ZDeterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars10.1038/s41598-017-01079-72045-2322https://doaj.org/article/23a8ed83ad7846e491fe21ce205919032017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01079-7https://doaj.org/toc/2045-2322Abstract Spin-orbit torque (SOT) induced by electric current has attracted extensive attention as an efficient method of controlling the magnetization in nanomagnetic structures. SOT-induced magnetization reversal is usually achieved with the aid of an in-plane bias magnetic field. In this paper, we show that by selecting a film stack with weak out-of-plane magnetic anisotropy, field-free SOT-induced switching can be achieved in micron sized multilayers. Using direct current, deterministic bipolar magnetization reversal is obtained in Pt/[Co/Ni]2/Co/Ta structures. Kerr imaging reveals that the SOT-induced magnetization switching process is completed via the nucleation of reverse domain and propagation of domain wall in the system.Sihua LiSarjoosing GoolaupJaesuk KwonFeilong LuoWeiliang GanWen Siang LewNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sihua Li Sarjoosing Goolaup Jaesuk Kwon Feilong Luo Weiliang Gan Wen Siang Lew Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars
description	Abstract Spin-orbit torque (SOT) induced by electric current has attracted extensive attention as an efficient method of controlling the magnetization in nanomagnetic structures. SOT-induced magnetization reversal is usually achieved with the aid of an in-plane bias magnetic field. In this paper, we show that by selecting a film stack with weak out-of-plane magnetic anisotropy, field-free SOT-induced switching can be achieved in micron sized multilayers. Using direct current, deterministic bipolar magnetization reversal is obtained in Pt/[Co/Ni]2/Co/Ta structures. Kerr imaging reveals that the SOT-induced magnetization switching process is completed via the nucleation of reverse domain and propagation of domain wall in the system.
format	article
author	Sihua Li Sarjoosing Goolaup Jaesuk Kwon Feilong Luo Weiliang Gan Wen Siang Lew
author_facet	Sihua Li Sarjoosing Goolaup Jaesuk Kwon Feilong Luo Weiliang Gan Wen Siang Lew
author_sort	Sihua Li
title	Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars
title_short	Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars
title_full	Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars
title_fullStr	Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars
title_full_unstemmed	Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars
title_sort	deterministic spin-orbit torque induced magnetization reversal in pt/[co/ni] n /co/ta multilayer hall bars
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/23a8ed83ad7846e491fe21ce20591903
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_version_	1718384704201162752

Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni] n /Co/Ta Multilayer Hall Bars

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