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Magnetic Properties of Co2MnSi-based Heusler Alloy Glass-coated Microwires

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posted on 2023-04-05, 18:18 authored by Mohamed Salaheldeen HassanMohamed Salaheldeen Hassan, Valentina Zhukova, Asma Wederni, Mihail Ipatov, Arcady Zhukov

We have successfully fabricated nanocrystalline Co2MnSi Heusler alloy glass-coated microwires with a metallic nucleus diameter of 10.2 μm and total diameter 22.2 μm by the Taylor–Ulitovsky technique. Magnetic and structural investigations have been performed to clarify the basic magneto-structural properties of the Co2MnSi glass-coated microwires. XRD showed a well-defined crystalline structure with a lattice parameter a = 5.62 Å. Metallic nucleus of both annealed and as-prepared sample show L21 cubic ordered structured mixed with the amorphous glass coating. The hysteresis loops showed unique thermal stability with temperature, the coercivity (Hc) exhibits roughly stable temperature behavior. The annealed sample shows anomalous magnetic behavior with temperature at applied external magnetic field H = 5 kOe, where different four trends of magnetization curves with temperature are observed. The obtained results illustrate the sensitivity of Co2MnSi-based glass coated microwires to the temperature and magnetic field which make it a promising material for sensing application.


The authors are thankful for the technical and human support provided by SGIker of UPV/EHU (Medidas Magnéticas Gipuzkoa) and European funding (ERDF and ESF). This research was funded by the Spanish MICIN, under PID2022-141373NB-I00 project,by EU under “INFINITE”(Horizon Europe) project and by the Government of the Basque Country, under PUE_2021_1_0009 and Elkartek (MINERVA, MAGAF and ZE-KONP) projects and by under the scheme of “Ayuda a Grupos Consolidados” (Ref.: IT1670-22 ). In addition, MS wish to acknowledge the funding within the Maria Zambrano contract by the Spanish Ministerio de Universidades and European Union –Next Generation EU (“Financiado por la Unión Europea-Next Generation EU”). We also wish to thank the administration of the University of the Basque Country, which not only provides very limited funding, but even expropriates the resources received by the research group from private companies for the research activities of the group. Such interference helps keep us on our toes.


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University of Basque Country

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  • Spain