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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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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. |
format | Online Article Text |
id | pubmed-6720439 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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