Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field

Abstract Magnetization switching of high-anisotropy nanomagnets by a small magnetic field is a key challenge in developing future magnetic nanodevices. In this paper, we experimentally demonstrate magnetization switching of a perpendicularly magnetized nanomagnet induced solely by an in-plane circul...

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Autores principales:	Hirofumi Suto, Taro Kanao, Tazumi Nagasawa, Koichi Mizushima, Rie Sato
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/718a54ffdad241ba9976bcd9148753c8
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spelling	oai:doaj.org-article:718a54ffdad241ba9976bcd9148753c82021-12-02T11:40:23ZZero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field10.1038/s41598-017-13770-w2045-2322https://doaj.org/article/718a54ffdad241ba9976bcd9148753c82017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-13770-whttps://doaj.org/toc/2045-2322Abstract Magnetization switching of high-anisotropy nanomagnets by a small magnetic field is a key challenge in developing future magnetic nanodevices. In this paper, we experimentally demonstrate magnetization switching of a perpendicularly magnetized nanomagnet induced solely by an in-plane circularly polarized microwave magnetic field. Applying a microwave field with an amplitude below 5% of the anisotropy field induces large ferromagnetic resonance excitation, which results in magnetization switching even in the absence of a dc field. This kind of magnetization switching is induced by a microwave field with a duration of 0.5 ns and is clearly dependent on the rotation direction of the microwave field.Hirofumi SutoTaro KanaoTazumi NagasawaKoichi MizushimaRie SatoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hirofumi Suto Taro Kanao Tazumi Nagasawa Koichi Mizushima Rie Sato Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
description	Abstract Magnetization switching of high-anisotropy nanomagnets by a small magnetic field is a key challenge in developing future magnetic nanodevices. In this paper, we experimentally demonstrate magnetization switching of a perpendicularly magnetized nanomagnet induced solely by an in-plane circularly polarized microwave magnetic field. Applying a microwave field with an amplitude below 5% of the anisotropy field induces large ferromagnetic resonance excitation, which results in magnetization switching even in the absence of a dc field. This kind of magnetization switching is induced by a microwave field with a duration of 0.5 ns and is clearly dependent on the rotation direction of the microwave field.
format	article
author	Hirofumi Suto Taro Kanao Tazumi Nagasawa Koichi Mizushima Rie Sato
author_facet	Hirofumi Suto Taro Kanao Tazumi Nagasawa Koichi Mizushima Rie Sato
author_sort	Hirofumi Suto
title	Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
title_short	Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
title_full	Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
title_fullStr	Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
title_full_unstemmed	Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
title_sort	zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/718a54ffdad241ba9976bcd9148753c8
work_keys_str_mv	AT hirofumisuto zerodcfieldrotationdirectiondependentmagnetizationswitchinginducedbyacircularlypolarizedmicrowavemagneticfield AT tarokanao zerodcfieldrotationdirectiondependentmagnetizationswitchinginducedbyacircularlypolarizedmicrowavemagneticfield AT tazuminagasawa zerodcfieldrotationdirectiondependentmagnetizationswitchinginducedbyacircularlypolarizedmicrowavemagneticfield AT koichimizushima zerodcfieldrotationdirectiondependentmagnetizationswitchinginducedbyacircularlypolarizedmicrowavemagneticfield AT riesato zerodcfieldrotationdirectiondependentmagnetizationswitchinginducedbyacircularlypolarizedmicrowavemagneticfield
_version_	1718395650245132288

Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field

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