Spin pump and probe in lanthanum strontium manganite/platinum bilayers

Abstract Ferromagnetic resonance driven spin pumping (FMR-SP) is a novel method to transfer spin current from the ferromagnetic (FM) layer into the adjacent normal metal (NM) layer in an FM/NM bilayer system. Consequently, the spin current could be probed in NM layer via inverse spin Hall effect (IS...

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Autores principales:	G. Y. Luo, J. G. Lin, Wen-Chung Chiang, Ching-Ray Chang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a56e80dc4069433a9e31020ece28e492
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spelling	oai:doaj.org-article:a56e80dc4069433a9e31020ece28e4922021-12-02T11:41:12ZSpin pump and probe in lanthanum strontium manganite/platinum bilayers10.1038/s41598-017-06861-12045-2322https://doaj.org/article/a56e80dc4069433a9e31020ece28e4922017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06861-1https://doaj.org/toc/2045-2322Abstract Ferromagnetic resonance driven spin pumping (FMR-SP) is a novel method to transfer spin current from the ferromagnetic (FM) layer into the adjacent normal metal (NM) layer in an FM/NM bilayer system. Consequently, the spin current could be probed in NM layer via inverse spin Hall effect (ISHE). In spite of numerous ISHE studies on FM/Pt bilayers, La0.7Sr0.3MnO3(LSMO)/Pt system has been less explored and its relevant information about interface property (characterized by spin mixing conductance) and spin-charge conversion efficiency (characterized by spin Hall angle) is a matter of importance for the possible applications of spintronic devices. In this work, the technique of FMR-SP has been applied on two series of LSMO/Pt bilayers with the thickness of each layer being varied. The thickness dependences of ISHE voltage allow to extract the values of spin mixing conductance and spin Hall angle of LSMO/Pt bilayers, which are (1.8 ± 0.4) × 1019 m−2 and (1.2 ± 0.1) % respectively. In comparison with other FM/Pt systems, LSMO/Pt has comparable spin current density and spin mixing conductance, regardless its distinct electronic structure from other ferromagnetic metals.G. Y. LuoJ. G. LinWen-Chung ChiangChing-Ray ChangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q G. Y. Luo J. G. Lin Wen-Chung Chiang Ching-Ray Chang Spin pump and probe in lanthanum strontium manganite/platinum bilayers
description	Abstract Ferromagnetic resonance driven spin pumping (FMR-SP) is a novel method to transfer spin current from the ferromagnetic (FM) layer into the adjacent normal metal (NM) layer in an FM/NM bilayer system. Consequently, the spin current could be probed in NM layer via inverse spin Hall effect (ISHE). In spite of numerous ISHE studies on FM/Pt bilayers, La0.7Sr0.3MnO3(LSMO)/Pt system has been less explored and its relevant information about interface property (characterized by spin mixing conductance) and spin-charge conversion efficiency (characterized by spin Hall angle) is a matter of importance for the possible applications of spintronic devices. In this work, the technique of FMR-SP has been applied on two series of LSMO/Pt bilayers with the thickness of each layer being varied. The thickness dependences of ISHE voltage allow to extract the values of spin mixing conductance and spin Hall angle of LSMO/Pt bilayers, which are (1.8 ± 0.4) × 1019 m−2 and (1.2 ± 0.1) % respectively. In comparison with other FM/Pt systems, LSMO/Pt has comparable spin current density and spin mixing conductance, regardless its distinct electronic structure from other ferromagnetic metals.
format	article
author	G. Y. Luo J. G. Lin Wen-Chung Chiang Ching-Ray Chang
author_facet	G. Y. Luo J. G. Lin Wen-Chung Chiang Ching-Ray Chang
author_sort	G. Y. Luo
title	Spin pump and probe in lanthanum strontium manganite/platinum bilayers
title_short	Spin pump and probe in lanthanum strontium manganite/platinum bilayers
title_full	Spin pump and probe in lanthanum strontium manganite/platinum bilayers
title_fullStr	Spin pump and probe in lanthanum strontium manganite/platinum bilayers
title_full_unstemmed	Spin pump and probe in lanthanum strontium manganite/platinum bilayers
title_sort	spin pump and probe in lanthanum strontium manganite/platinum bilayers
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a56e80dc4069433a9e31020ece28e492
work_keys_str_mv	AT gyluo spinpumpandprobeinlanthanumstrontiummanganiteplatinumbilayers AT jglin spinpumpandprobeinlanthanumstrontiummanganiteplatinumbilayers AT wenchungchiang spinpumpandprobeinlanthanumstrontiummanganiteplatinumbilayers AT chingraychang spinpumpandprobeinlanthanumstrontiummanganiteplatinumbilayers
_version_	1718395477175566336

Spin pump and probe in lanthanum strontium manganite/platinum bilayers

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