Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films

Abstract Reducing the power consumption necessary for magnetization reversal is one of the most crucial issues facing spintronics devices. Electric field control of the magnetic anisotropy of ferromagnetic thin films is a promising method to solve this problem. However, the electric field is believe...

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Autores principales:	Hiroshi Terada, Shinobu Ohya, Le Duc Anh, Yoshihiro Iwasa, Masaaki Tanaka
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8a404c3402274647b71884b6fa2cae83
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spelling	oai:doaj.org-article:8a404c3402274647b71884b6fa2cae832021-12-02T12:30:18ZMagnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films10.1038/s41598-017-05799-82045-2322https://doaj.org/article/8a404c3402274647b71884b6fa2cae832017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05799-8https://doaj.org/toc/2045-2322Abstract Reducing the power consumption necessary for magnetization reversal is one of the most crucial issues facing spintronics devices. Electric field control of the magnetic anisotropy of ferromagnetic thin films is a promising method to solve this problem. However, the electric field is believed to be effective only within several nanometres of the surface in ferromagnetic metals because of its short Thomas-Fermi screening length, which prevents its practical application to devices. Herein, we successfully modulate the magnetic anisotropy of the entire region of the ferromagnetic layers in the elongated mesas of vertical spin field-effect transistors with widths as large as ~500 nm by applying an electric field to the side surface of the metallic GaMnAs-based mesas through an electric double layer. Our results will open up a new pathway for spintronics devices with ultra-low power consumption.Hiroshi TeradaShinobu OhyaLe Duc AnhYoshihiro IwasaMasaaki TanakaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hiroshi Terada Shinobu Ohya Le Duc Anh Yoshihiro Iwasa Masaaki Tanaka Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films
description	Abstract Reducing the power consumption necessary for magnetization reversal is one of the most crucial issues facing spintronics devices. Electric field control of the magnetic anisotropy of ferromagnetic thin films is a promising method to solve this problem. However, the electric field is believed to be effective only within several nanometres of the surface in ferromagnetic metals because of its short Thomas-Fermi screening length, which prevents its practical application to devices. Herein, we successfully modulate the magnetic anisotropy of the entire region of the ferromagnetic layers in the elongated mesas of vertical spin field-effect transistors with widths as large as ~500 nm by applying an electric field to the side surface of the metallic GaMnAs-based mesas through an electric double layer. Our results will open up a new pathway for spintronics devices with ultra-low power consumption.
format	article
author	Hiroshi Terada Shinobu Ohya Le Duc Anh Yoshihiro Iwasa Masaaki Tanaka
author_facet	Hiroshi Terada Shinobu Ohya Le Duc Anh Yoshihiro Iwasa Masaaki Tanaka
author_sort	Hiroshi Terada
title	Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films
title_short	Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films
title_full	Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films
title_fullStr	Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films
title_full_unstemmed	Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films
title_sort	magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/8a404c3402274647b71884b6fa2cae83
work_keys_str_mv	AT hiroshiterada magneticanisotropycontrolbyapplyinganelectricfieldtothesidesurfaceofferromagneticfilms AT shinobuohya magneticanisotropycontrolbyapplyinganelectricfieldtothesidesurfaceofferromagneticfilms AT leducanh magneticanisotropycontrolbyapplyinganelectricfieldtothesidesurfaceofferromagneticfilms AT yoshihiroiwasa magneticanisotropycontrolbyapplyinganelectricfieldtothesidesurfaceofferromagneticfilms AT masaakitanaka magneticanisotropycontrolbyapplyinganelectricfieldtothesidesurfaceofferromagneticfilms
_version_	1718394408801402880

Magnetic anisotropy control by applying an electric field to the side surface of ferromagnetic films

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