Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy

Abstract The voltage controlled magnetic anisotropy (VCMA) becomes a subject of major interest for spintronics due to its promising potential outcome: fast magnetization manipulation in magnetoresistive random access memories with enhanced storage density and very low power consumption. Using a macr...

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Autores principales:	Roxana-Alina One, Hélène Béa, Sever Mican, Marius Joldos, Pedro Brandão Veiga, Bernard Dieny, Liliana D. Buda-Prejbeanu, Coriolan Tiusan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/179b484f75e241b6b95253700156ab09
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spelling	oai:doaj.org-article:179b484f75e241b6b95253700156ab092021-12-02T13:39:34ZRoute towards efficient magnetization reversal driven by voltage control of magnetic anisotropy10.1038/s41598-021-88408-z2045-2322https://doaj.org/article/179b484f75e241b6b95253700156ab092021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88408-zhttps://doaj.org/toc/2045-2322Abstract The voltage controlled magnetic anisotropy (VCMA) becomes a subject of major interest for spintronics due to its promising potential outcome: fast magnetization manipulation in magnetoresistive random access memories with enhanced storage density and very low power consumption. Using a macrospin approach, we carried out a thorough analysis of the role of the VCMA on the magnetization dynamics of nanostructures with out-of-plane magnetic anisotropy. Diagrams of the magnetization switching have been computed depending on the material and experiment parameters (surface anisotropy, Gilbert damping, duration/amplitude of electric and magnetic field pulses) thus allowing predictive sets of parameters for optimum switching experiments. Two characteristic times of the trajectory of the magnetization were analyzed analytically and numerically setting a lower limit for the duration of the pulses. An interesting switching regime has been identified where the precessional reversal of magnetization does not depend on the voltage pulse duration. This represents a promising path for the magnetization control by VCMA with enhanced versatility.Roxana-Alina OneHélène BéaSever MicanMarius JoldosPedro Brandão VeigaBernard DienyLiliana D. Buda-PrejbeanuCoriolan TiusanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Roxana-Alina One Hélène Béa Sever Mican Marius Joldos Pedro Brandão Veiga Bernard Dieny Liliana D. Buda-Prejbeanu Coriolan Tiusan Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy
description	Abstract The voltage controlled magnetic anisotropy (VCMA) becomes a subject of major interest for spintronics due to its promising potential outcome: fast magnetization manipulation in magnetoresistive random access memories with enhanced storage density and very low power consumption. Using a macrospin approach, we carried out a thorough analysis of the role of the VCMA on the magnetization dynamics of nanostructures with out-of-plane magnetic anisotropy. Diagrams of the magnetization switching have been computed depending on the material and experiment parameters (surface anisotropy, Gilbert damping, duration/amplitude of electric and magnetic field pulses) thus allowing predictive sets of parameters for optimum switching experiments. Two characteristic times of the trajectory of the magnetization were analyzed analytically and numerically setting a lower limit for the duration of the pulses. An interesting switching regime has been identified where the precessional reversal of magnetization does not depend on the voltage pulse duration. This represents a promising path for the magnetization control by VCMA with enhanced versatility.
format	article
author	Roxana-Alina One Hélène Béa Sever Mican Marius Joldos Pedro Brandão Veiga Bernard Dieny Liliana D. Buda-Prejbeanu Coriolan Tiusan
author_facet	Roxana-Alina One Hélène Béa Sever Mican Marius Joldos Pedro Brandão Veiga Bernard Dieny Liliana D. Buda-Prejbeanu Coriolan Tiusan
author_sort	Roxana-Alina One
title	Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy
title_short	Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy
title_full	Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy
title_fullStr	Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy
title_full_unstemmed	Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy
title_sort	route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/179b484f75e241b6b95253700156ab09
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_version_	1718392600839323648

Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy

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