Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating

Abstract The spin Hall effect (SHE) and inverse spin Hall effect (ISHE) have played central roles in modern condensed matter physics especially in spintronics and spin-orbitronics, and much effort has been paid to fundamental and application-oriented research towards the discovery of novel spin–orbi...

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Autores principales:	Ryo Ohshima, Yuto Kohsaka, Yuichiro Ando, Teruya Shinjo, Masashi Shiraishi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/81d24dc4c85f4503b66b178a57c62a38
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spelling	oai:doaj.org-article:81d24dc4c85f4503b66b178a57c62a382021-11-08T10:46:36ZModulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating10.1038/s41598-021-01310-62045-2322https://doaj.org/article/81d24dc4c85f4503b66b178a57c62a382021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01310-6https://doaj.org/toc/2045-2322Abstract The spin Hall effect (SHE) and inverse spin Hall effect (ISHE) have played central roles in modern condensed matter physics especially in spintronics and spin-orbitronics, and much effort has been paid to fundamental and application-oriented research towards the discovery of novel spin–orbit physics and the creation of novel spintronic devices. However, studies on gate-tunability of such spintronics devices have been limited, because most of them are made of metallic materials, where the high bulk carrier densities hinder the tuning of physical properties by gating. Here, we show an experimental demonstration of the gate-tunable spin–orbit torque in Pt/Ni80Fe20 (Py) devices by controlling the SHE using nanometer-thick Pt with low carrier densities and ionic gating. The Gilbert damping parameter of Py and the spin-memory loss at the Pt/Py interface were modulated by ionic gating to Pt, which are compelling results for the successful tuning of spin–orbit interaction in Pt.Ryo OhshimaYuto KohsakaYuichiro AndoTeruya ShinjoMasashi ShiraishiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ryo Ohshima Yuto Kohsaka Yuichiro Ando Teruya Shinjo Masashi Shiraishi Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
description	Abstract The spin Hall effect (SHE) and inverse spin Hall effect (ISHE) have played central roles in modern condensed matter physics especially in spintronics and spin-orbitronics, and much effort has been paid to fundamental and application-oriented research towards the discovery of novel spin–orbit physics and the creation of novel spintronic devices. However, studies on gate-tunability of such spintronics devices have been limited, because most of them are made of metallic materials, where the high bulk carrier densities hinder the tuning of physical properties by gating. Here, we show an experimental demonstration of the gate-tunable spin–orbit torque in Pt/Ni80Fe20 (Py) devices by controlling the SHE using nanometer-thick Pt with low carrier densities and ionic gating. The Gilbert damping parameter of Py and the spin-memory loss at the Pt/Py interface were modulated by ionic gating to Pt, which are compelling results for the successful tuning of spin–orbit interaction in Pt.
format	article
author	Ryo Ohshima Yuto Kohsaka Yuichiro Ando Teruya Shinjo Masashi Shiraishi
author_facet	Ryo Ohshima Yuto Kohsaka Yuichiro Ando Teruya Shinjo Masashi Shiraishi
author_sort	Ryo Ohshima
title	Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
title_short	Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
title_full	Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
title_fullStr	Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
title_full_unstemmed	Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
title_sort	modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/81d24dc4c85f4503b66b178a57c62a38
work_keys_str_mv	AT ryoohshima modulationofspintorqueferromagneticresonancewithananometerthickplatinumbyionicgating AT yutokohsaka modulationofspintorqueferromagneticresonancewithananometerthickplatinumbyionicgating AT yuichiroando modulationofspintorqueferromagneticresonancewithananometerthickplatinumbyionicgating AT teruyashinjo modulationofspintorqueferromagneticresonancewithananometerthickplatinumbyionicgating AT masashishiraishi modulationofspintorqueferromagneticresonancewithananometerthickplatinumbyionicgating
_version_	1718442633059106816

Modulation of spin-torque ferromagnetic resonance with a nanometer-thick platinum by ionic gating

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