Optimization of Giant Magnetoimpedance Effect of Amorphous Microwires by Postprocessing
dc.contributor.author | Zhukova Zhukova, Valentina | |
dc.contributor.author | Corte León, Paula | |
dc.contributor.author | Talaat, Ahmed | |
dc.contributor.author | Ipatov, Mihail | |
dc.contributor.author | García Gómez, Alfonso | |
dc.contributor.author | González, Alvaro | |
dc.contributor.author | Blanco Aranguren, Juan María | |
dc.contributor.author | Zukov Egorova, Arkady Pavlovich | |
dc.date.accessioned | 2024-04-09T16:29:49Z | |
dc.date.available | 2024-04-09T16:29:49Z | |
dc.date.issued | 2024-03-12 | |
dc.identifier.citation | Processes 12(3) : (2024) // Article ID 556 | es_ES |
dc.identifier.issn | 2227-9717 | |
dc.identifier.uri | http://hdl.handle.net/10810/66575 | |
dc.description.abstract | Magnetic microwires with amorphous structures can present a unique combination of excellent magnetic softness and giant magnetoimpedance (GMI) effects together with reduced dimensions and good mechanical properties. Such unique properties make them suitable for various technological applications. The high GMI effect, observed in as-prepared Co-rich microwires, can be further optimized by postprocessing. However, unexpected magnetic hardening and a transformation of the linear hysteresis loop into a rectangular loop with a coercivity on the order of 90 A/m were observed in several Co-rich microwires upon conventional annealing. Several routes to improve magnetic softness and GMI effect in Fe- and Co-rich magnetic microwires are provided. We observed that stress annealing could remarkably improve the magnetic softness and GMI ratio of Co-rich microwires. Thus, almost unhysteretic loops with a coercivity of 2 A/m and a magnetic anisotropy field of about 70 A/m are achieved in Co-rich microwires stress annealed at appropriate conditions. The observed change in hysteresis loops and the GMI effect is explained by stress-annealing-induced anisotropy, which is affected by the stresses applied during annealing and by the annealing temperature. While as-prepared Fe-rich amorphous microwires present a low GMI effect, appropriate postprocessing (annealing and stress annealing) allows for a remarkable GMI ratio improvement (an order of magnitude). The evaluated dependence of the maximum GMI ratio on frequency allows the identification of the optimal frequency band for the studied samples. The origin of stress-annealing-induced anisotropy and related changes in hysteresis loops and the GMI effect are discussed in terms of the relaxation of internal stresses, “back-stresses”, as well as structural anisotropy. | es_ES |
dc.description.sponsorship | This work was supported by the EU under the “INFINITE” (HORIZON-CL5-2021-D5-01-06) and “Harmony” (HORIZON-CL4-2023-RESILIENCE-01) projects, by the Spanish MICIN under the PID2022-141373NB-I00 project, and by the Government of the Basque Country under the Elkartek (MINERVA, MAGAF, and MOSINCO) projects and under the scheme of “Ayuda a Grupos Consolidados” (Ref. IT1670-22). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2022-141373NB-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/es/ | |
dc.subject | magnetic microwires | es_ES |
dc.subject | magnetic anisotropy | es_ES |
dc.subject | magnetoimpedance effect | es_ES |
dc.subject | hysteresis loops | es_ES |
dc.subject | internal stresses | es_ES |
dc.subject | induced magnetic anisotropy | es_ES |
dc.title | Optimization of Giant Magnetoimpedance Effect of Amorphous Microwires by Postprocessing | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2024-03-27T13:16:21Z | |
dc.rights.holder | © 2024 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 (https://creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2227-9717/12/3/556 | es_ES |
dc.identifier.doi | 10.3390/pr12030556 | |
dc.departamentoes | Física aplicada I | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia | |
dc.departamentoeu | Fisika aplikatua I |
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Except where otherwise noted, this item's license is described as © 2024 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 (https://creativecommons.org/licenses/by/ 4.0/).