Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking

Abstract Hybrid normal metal/ferromagnetic, gold/permalloy (Au/Py), nanojunctions are used to investigate magnetoresistance effects and track magnetization spatial distribution in L-shaped Py nanostructures. Transversal and longitudinal resistances are measured and compared for both straight and 90°...

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Autores principales:	Héctor Corte-León, Patryk Krzysteczko, Alessandra Manzin, Hans Werner Schumacher, Vladimir Antonov, Olga Kazakova
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/86913aa7577c4d54be8f644b101b50b7
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spelling	oai:doaj.org-article:86913aa7577c4d54be8f644b101b50b72021-12-02T12:32:27ZHybrid normal metal/ferromagnetic nanojunctions for domain wall tracking10.1038/s41598-017-06292-y2045-2322https://doaj.org/article/86913aa7577c4d54be8f644b101b50b72017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06292-yhttps://doaj.org/toc/2045-2322Abstract Hybrid normal metal/ferromagnetic, gold/permalloy (Au/Py), nanojunctions are used to investigate magnetoresistance effects and track magnetization spatial distribution in L-shaped Py nanostructures. Transversal and longitudinal resistances are measured and compared for both straight and 90° corner sections of the Py nanostructure. Our results demonstrate that the absolute change in resistance is larger in the case of longitudinal measurements. However, due to the small background resistance, the relative change in the transversal resistance along the straight section is several orders of magnitude larger than the analogous longitudinal variation. These results prove that hybrid nanojunctions represent a significant improvement with respect to previously studied all-ferromagnetic crosses, as they also reduce the pinning potential at the junction and allow probing the magnetization locally. In addition, unusual metastable states with longitudinal domain walls along Py straight sections are observed. Micromagnetic simulations in combination with a magnetotransport model allow interpretation of the results and identification of the observed transitions.Héctor Corte-LeónPatryk KrzysteczkoAlessandra ManzinHans Werner SchumacherVladimir AntonovOlga KazakovaNature 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 Héctor Corte-León Patryk Krzysteczko Alessandra Manzin Hans Werner Schumacher Vladimir Antonov Olga Kazakova Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
description	Abstract Hybrid normal metal/ferromagnetic, gold/permalloy (Au/Py), nanojunctions are used to investigate magnetoresistance effects and track magnetization spatial distribution in L-shaped Py nanostructures. Transversal and longitudinal resistances are measured and compared for both straight and 90° corner sections of the Py nanostructure. Our results demonstrate that the absolute change in resistance is larger in the case of longitudinal measurements. However, due to the small background resistance, the relative change in the transversal resistance along the straight section is several orders of magnitude larger than the analogous longitudinal variation. These results prove that hybrid nanojunctions represent a significant improvement with respect to previously studied all-ferromagnetic crosses, as they also reduce the pinning potential at the junction and allow probing the magnetization locally. In addition, unusual metastable states with longitudinal domain walls along Py straight sections are observed. Micromagnetic simulations in combination with a magnetotransport model allow interpretation of the results and identification of the observed transitions.
format	article
author	Héctor Corte-León Patryk Krzysteczko Alessandra Manzin Hans Werner Schumacher Vladimir Antonov Olga Kazakova
author_facet	Héctor Corte-León Patryk Krzysteczko Alessandra Manzin Hans Werner Schumacher Vladimir Antonov Olga Kazakova
author_sort	Héctor Corte-León
title	Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
title_short	Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
title_full	Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
title_fullStr	Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
title_full_unstemmed	Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
title_sort	hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/86913aa7577c4d54be8f644b101b50b7
work_keys_str_mv	AT hectorcorteleon hybridnormalmetalferromagneticnanojunctionsfordomainwalltracking AT patrykkrzysteczko hybridnormalmetalferromagneticnanojunctionsfordomainwalltracking AT alessandramanzin hybridnormalmetalferromagneticnanojunctionsfordomainwalltracking AT hanswernerschumacher hybridnormalmetalferromagneticnanojunctionsfordomainwalltracking AT vladimirantonov hybridnormalmetalferromagneticnanojunctionsfordomainwalltracking AT olgakazakova hybridnormalmetalferromagneticnanojunctionsfordomainwalltracking
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Hybrid normal metal/ferromagnetic nanojunctions for domain wall tracking

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