Tailoring of magnetic softness and GMI effect in Fe-rich thin magnetic wires

We present comparative studies of magnetic properties and giant magnetoimpedance (GMI) effect of Fe and Co-rich microwires. As-prepared Co-rich microwires present much higher GMI ratio. The impact of the stress-annealing on magnetic softness and magnetoimpedance effect of Fe-rich microwires has been...

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Bibliographic Details
Main Authors: V. Zhukova, P. Corte-León, M. Ipatov, A. Talaat, J. M. Blanco, J. Olivera, J. Gonzalez, A. Zhukov
Format: Article
Language:English
Published: AIP Publishing LLC 2018-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5004701
Description
Summary:We present comparative studies of magnetic properties and giant magnetoimpedance (GMI) effect of Fe and Co-rich microwires. As-prepared Co-rich microwires present much higher GMI ratio. The impact of the stress-annealing on magnetic softness and magnetoimpedance effect of Fe-rich microwires has been studied. The large improvement of the magnetoimpedance response by the stress-annealing is observed. We have achieved GMI ratio increase by an order of magnitude after stress-annealing of Fe-rich microwire. Observed stress-induced anisotropy and related changes of magnetic properties are discussed considering internal stresses relaxation and “back-stresses”.
ISSN:2158-3226