Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device

Recent ferromagnetic resonance experiments and theory of Pt/Nb/Ni_{8}Fe_{2} proximity-coupled structures strongly suggest that spin-orbit coupling (SOC) in Pt in conjunction with a magnetic exchange field in Ni_{8}Fe_{2} are the essential ingredients to generate a pure spin supercurrent channel in N...

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Autores principales:	Kun-Rok Jeon, Xavier Montiel, Sachio Komori, Chiara Ciccarelli, James Haigh, Hidekazu Kurebayashi, Lesley F. Cohen, Alex K. Chan, Kilian D. Stenning, Chang-Min Lee, Matthias Eschrig, Mark G. Blamire, Jason W. A. Robinson
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2020
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/4eb2305ff07f4ea096581eff23d5c0c4
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spelling	oai:doaj.org-article:4eb2305ff07f4ea096581eff23d5c0c42021-12-02T19:02:51ZTunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device10.1103/PhysRevX.10.0310202160-3308https://doaj.org/article/4eb2305ff07f4ea096581eff23d5c0c42020-07-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.10.031020http://doi.org/10.1103/PhysRevX.10.031020https://doaj.org/toc/2160-3308Recent ferromagnetic resonance experiments and theory of Pt/Nb/Ni_{8}Fe_{2} proximity-coupled structures strongly suggest that spin-orbit coupling (SOC) in Pt in conjunction with a magnetic exchange field in Ni_{8}Fe_{2} are the essential ingredients to generate a pure spin supercurrent channel in Nb. Here, by substituting Pt for a perpendicularly magnetized Pt/Co/Pt spin sink, we are able to demonstrate the role of SOC and show that pure spin supercurrent pumping efficiency across Nb is tunable by controlling the magnetization direction of Co. By inserting a Cu spacer with weak SOC between Nb and Pt/(Co/Pt) spin sink, we also prove that Rashba-type SOC is key for forming and transmitting pure spin supercurrents across Nb. Finally, by engineering these properties within a single multilayer structure, we demonstrate a prototype superconductor spin-wave device in which lateral spin-wave propagation is gateable via the opening or closing of a vertical pure spin supercurrent channel in Nb.Kun-Rok JeonXavier MontielSachio KomoriChiara CiccarelliJames HaighHidekazu KurebayashiLesley F. CohenAlex K. ChanKilian D. StenningChang-Min LeeMatthias EschrigMark G. BlamireJason W. A. RobinsonAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 10, Iss 3, p 031020 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Kun-Rok Jeon Xavier Montiel Sachio Komori Chiara Ciccarelli James Haigh Hidekazu Kurebayashi Lesley F. Cohen Alex K. Chan Kilian D. Stenning Chang-Min Lee Matthias Eschrig Mark G. Blamire Jason W. A. Robinson Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device
description	Recent ferromagnetic resonance experiments and theory of Pt/Nb/Ni_{8}Fe_{2} proximity-coupled structures strongly suggest that spin-orbit coupling (SOC) in Pt in conjunction with a magnetic exchange field in Ni_{8}Fe_{2} are the essential ingredients to generate a pure spin supercurrent channel in Nb. Here, by substituting Pt for a perpendicularly magnetized Pt/Co/Pt spin sink, we are able to demonstrate the role of SOC and show that pure spin supercurrent pumping efficiency across Nb is tunable by controlling the magnetization direction of Co. By inserting a Cu spacer with weak SOC between Nb and Pt/(Co/Pt) spin sink, we also prove that Rashba-type SOC is key for forming and transmitting pure spin supercurrents across Nb. Finally, by engineering these properties within a single multilayer structure, we demonstrate a prototype superconductor spin-wave device in which lateral spin-wave propagation is gateable via the opening or closing of a vertical pure spin supercurrent channel in Nb.
format	article
author	Kun-Rok Jeon Xavier Montiel Sachio Komori Chiara Ciccarelli James Haigh Hidekazu Kurebayashi Lesley F. Cohen Alex K. Chan Kilian D. Stenning Chang-Min Lee Matthias Eschrig Mark G. Blamire Jason W. A. Robinson
author_facet	Kun-Rok Jeon Xavier Montiel Sachio Komori Chiara Ciccarelli James Haigh Hidekazu Kurebayashi Lesley F. Cohen Alex K. Chan Kilian D. Stenning Chang-Min Lee Matthias Eschrig Mark G. Blamire Jason W. A. Robinson
author_sort	Kun-Rok Jeon
title	Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device
title_short	Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device
title_full	Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device
title_fullStr	Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device
title_full_unstemmed	Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device
title_sort	tunable pure spin supercurrents and the demonstration of their gateability in a spin-wave device
publisher	American Physical Society
publishDate	2020
url	https://doaj.org/article/4eb2305ff07f4ea096581eff23d5c0c4
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Tunable Pure Spin Supercurrents and the Demonstration of Their Gateability in a Spin-Wave Device

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