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Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires

The domain wall (DW) dynamics of amorphous and nanocrystalline Co-based glass-coated microwires are explored under the influence of stress annealing. Different annealing profiles have enabled remarkable changes in coercivity and magnetostriction values of Co-based amorphous microwires with initially...

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Autores principales: Talaat, Ahmed, Zhukova, Valentina, Ipatov, Mihail, Blanco, Juan María, Gonzalez, Julián, Zhukov, Arcady
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6720439/
https://www.ncbi.nlm.nih.gov/pubmed/31434213
http://dx.doi.org/10.3390/ma12162644
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author Talaat, Ahmed
Zhukova, Valentina
Ipatov, Mihail
Blanco, Juan María
Gonzalez, Julián
Zhukov, Arcady
author_facet Talaat, Ahmed
Zhukova, Valentina
Ipatov, Mihail
Blanco, Juan María
Gonzalez, Julián
Zhukov, Arcady
author_sort Talaat, Ahmed
collection PubMed
description The domain wall (DW) dynamics of amorphous and nanocrystalline Co-based glass-coated microwires are explored under the influence of stress annealing. Different annealing profiles have enabled remarkable changes in coercivity and magnetostriction values of Co-based amorphous microwires with initially negative magnitude, allowing induced magnetic bistability in stress-annealed samples and, consequently, high DW velocity has been observed. Similarly, Co-based nanocrystalline microwires with positive magnetostriction and spontaneous bistability have featured high DW velocity. Different values of tensile stresses applied during annealing have resulted in a redistribution of magnetoelastic anisotropy showing a decreasing trend in both DW velocities and coercivity of nanocrystalline samples. Observed results are discussed in terms of the stress dependence on magnetostriction and microstructural relaxation.
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spelling pubmed-67204392019-09-10 Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires Talaat, Ahmed Zhukova, Valentina Ipatov, Mihail Blanco, Juan María Gonzalez, Julián Zhukov, Arcady Materials (Basel) Article The domain wall (DW) dynamics of amorphous and nanocrystalline Co-based glass-coated microwires are explored under the influence of stress annealing. Different annealing profiles have enabled remarkable changes in coercivity and magnetostriction values of Co-based amorphous microwires with initially negative magnitude, allowing induced magnetic bistability in stress-annealed samples and, consequently, high DW velocity has been observed. Similarly, Co-based nanocrystalline microwires with positive magnetostriction and spontaneous bistability have featured high DW velocity. Different values of tensile stresses applied during annealing have resulted in a redistribution of magnetoelastic anisotropy showing a decreasing trend in both DW velocities and coercivity of nanocrystalline samples. Observed results are discussed in terms of the stress dependence on magnetostriction and microstructural relaxation. MDPI 2019-08-20 /pmc/articles/PMC6720439/ /pubmed/31434213 http://dx.doi.org/10.3390/ma12162644 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Talaat, Ahmed
Zhukova, Valentina
Ipatov, Mihail
Blanco, Juan María
Gonzalez, Julián
Zhukov, Arcady
Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires
title Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires
title_full Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires
title_fullStr Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires
title_full_unstemmed Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires
title_short Impact of Stress Annealing on the Magnetization Process of Amorphous and Nanocrystalline Co-Based Microwires
title_sort impact of stress annealing on the magnetization process of amorphous and nanocrystalline co-based microwires
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6720439/
https://www.ncbi.nlm.nih.gov/pubmed/31434213
http://dx.doi.org/10.3390/ma12162644
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