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Stress-Induced Magnetic Anisotropy Enabling Engineering of Magnetic Softness and GMI Effect of Amorphous Microwires

Authors :
Paula Corte-León
Ahmed Talaat
Valentina Zhukova
Mihail Ipatov
Juan María Blanco
Julián Gonzalez
Arcady Zhukov
Source :
Applied Sciences, Vol 10, Iss 3, p 981 (2020)
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

Stress-annealing enabled a considerable improvement in the GMI effect in both Fe- and Co-rich glass-coated microwires. Additionally, a remarkable magnetic softening can be achieved in stress-annealed Fe-rich microwires. Observed stress-annealing induced magnetic anisotropy is affected by annealing conditions (temperatures and stresses applied during annealing). The highest GMI ratio up to 310% was obtained in stress-annealed Co-rich microwires, although they presented rectangular hysteresis loops. A remarkable magnetic softness and improved GMI ratio over a wide frequency range were obtained in stress-annealed Fe-rich microwires. Irregular magnetic field dependence observed for some stress-annealing conditions is attributed to the contribution of both the inner axially magnetized core and outer shell, with transverse magnetic anisotropy.

Details

Language :
English
ISSN :
20763417
Volume :
10
Issue :
3
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.8cac5553a90349c783d5c7635cf44e54
Document Type :
article
Full Text :
https://doi.org/10.3390/app10030981