Effect of temperature on magnetic properties and magnetoimpedance effect of Co-rich glass-coated microwires

Author:

Corte-Leon P.123ORCID,Skorvanek I.4ORCID,Andrejka F.4ORCID,Jakubcin M.4ORCID,Zhukova V.12ORCID,Zhukov A.1235ORCID

Affiliation:

1. Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of Basque Country, UPV/EHU 1 , 20018 San Sebastian, Spain

2. Department of Applied Physics I, Escuela de Ingeniería de Gipuzkoa EIG, University of Basque Country, UPV/EHU 2 , Plaza Europa 1, 20018 San Sebastian, Spain

3. EHU Quantum Center, University of the Basque Country, UPV/EHU 3 , San Sebastian, Spain

4. Institute of Experimental Physics, Slovak Academy of Sciences 4 , Kosice, Slovakia

5. IKERBASQUE, Basque Foundation for Science 5 , 48011 Bilbao, Spain

Abstract

We studied the effect of heating on the magnetic properties and giant magnetoimpedance (GMI), effect of Co69.2Fe3.6Ni1B12.5Si11Mo1.5C1.2 glass-coated microwires with vanishing magnetostriction. We observed, that upon heating the hysteresis loop changed its shape from inclined to rectangular. These changes in hysteresis loop shape correlate with modification of magnetic field dependencies of GMI ratio, ΔZ/Z, from double-peak to single-peak and with change in value of maximum GMI ratio. The origin of the observed changes in the hysteresis loop and the GMI effect is discussed in terms of the Hopkinson effect, internal stresses relaxation upon heating, and the temperature dependencies of internal stresses and the magnetostriction coefficient.

Funder

HORIZON EUROPE Framework Programme

Ministerio de Ciencia e Innovación

Hezkuntza, Hizkuntza Politika Eta Kultura Saila, Eusko Jaurlaritza

Agentúra Ministerstva Školstva, Vedy, Výskumu a Športu SR

European Regional Development Fund

European Social Fund Plus

Publisher

AIP Publishing

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