Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropy

We observed that stress-annealing of Fe75B9Si12C4 magnetic microwire at variable annealing temperature allows to create graded magnetic anisotropy. We have found that single domain wall (DW) propagation in a media with graded magnetic anisotropy is essentially non-uniform: faster DW propagation is o...

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Main Authors: P. Corte-Leon, V. Zhukova, J. M. Blanco, M. Ipatov, A. Fert, J. Gonzalez, A. Zhukov
Format: Article
Language:English
Published: AIP Publishing LLC 2022-03-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/9.0000324
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author P. Corte-Leon
V. Zhukova
J. M. Blanco
M. Ipatov
A. Fert
J. Gonzalez
A. Zhukov
author_facet P. Corte-Leon
V. Zhukova
J. M. Blanco
M. Ipatov
A. Fert
J. Gonzalez
A. Zhukov
author_sort P. Corte-Leon
collection DOAJ
description We observed that stress-annealing of Fe75B9Si12C4 magnetic microwire at variable annealing temperature allows to create graded magnetic anisotropy. We have found that single domain wall (DW) propagation in a media with graded magnetic anisotropy is essentially non-uniform: faster DW propagation is observed in the region with moderate stress-annealing induced magnetic anisotropy. Higher DW velocity in the region with induced magnetic anisotropy is explained by the transverse character of stress-annealing induced magnetic anisotropy which affects the travelling DW in a similar way as application of transversal bias magnetic field. Obtained graded magnetic anisotropy allows engineering the DW dynamics of Fe-rich microwires.
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spelling doaj.art-b5fba09f13024f359acd1980cf99762d2022-12-22T03:20:36ZengAIP Publishing LLCAIP Advances2158-32262022-03-01123035228035228-510.1063/9.0000324Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropyP. Corte-Leon0V. Zhukova1J. M. Blanco2M. Ipatov3A. Fert4J. Gonzalez5A. Zhukov6Department of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, UPV/EHU, 20018 San Sebastian, SpainDepartment of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, UPV/EHU, 20018 San Sebastian, SpainDepartment of Applied Physics I, EUPDS, UPV/EHU, 20018 San Sebastian, SpainDepartment of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, UPV/EHU, 20018 San Sebastian, SpainDepartment of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, UPV/EHU, 20018 San Sebastian, SpainDepartment of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, UPV/EHU, 20018 San Sebastian, SpainDepartment of Advanced Polymers and Materials: Physics, Chemistry and Technology, Faculty of Chemistry, UPV/EHU, 20018 San Sebastian, SpainWe observed that stress-annealing of Fe75B9Si12C4 magnetic microwire at variable annealing temperature allows to create graded magnetic anisotropy. We have found that single domain wall (DW) propagation in a media with graded magnetic anisotropy is essentially non-uniform: faster DW propagation is observed in the region with moderate stress-annealing induced magnetic anisotropy. Higher DW velocity in the region with induced magnetic anisotropy is explained by the transverse character of stress-annealing induced magnetic anisotropy which affects the travelling DW in a similar way as application of transversal bias magnetic field. Obtained graded magnetic anisotropy allows engineering the DW dynamics of Fe-rich microwires.http://dx.doi.org/10.1063/9.0000324
spellingShingle P. Corte-Leon
V. Zhukova
J. M. Blanco
M. Ipatov
A. Fert
J. Gonzalez
A. Zhukov
Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropy
AIP Advances
title Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropy
title_full Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropy
title_fullStr Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropy
title_full_unstemmed Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropy
title_short Domain wall propagation in Fe-rich magnetic microwires with graded magnetic anisotropy
title_sort domain wall propagation in fe rich magnetic microwires with graded magnetic anisotropy
url http://dx.doi.org/10.1063/9.0000324
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