Giant magneto-impedance effect in thin Finemet nanocrystalline microwires

Giant magneto-impedance effect in thin Finemet nanocrystalline microwires

We studied giant magneto‐impedance (GMI) effect, magnetic and structural properties of thin Finemet‐type (FeCuNbSiB) glass‐coated microwires fabricated by Taylor‐Ulitovsky technique with different composition and diameters, with the aim to achieve the optimal conditions for improving the final GMI r...

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Veröffentlicht in:Physica status solidi. C 2014-05, Vol.11 (5-6), p.1120-1124
Hauptverfasser: Talaat, A., Ipatov, M., Zhukova, V., Blanco, J. M., Churyukanova, M., Kaloshkin, S., Zhukov, A.
Format: Artikel
Sprache:eng
Schlagworte:
Annealing
Composition effects
Ferrous alloys
giant magnetoimpedance
magnetoelastic anisotropy
Magnetoimpedance
metallic glasses
microwires
nanocrystalline materials
Nanocrystals
nanograins
Optimization
Quenching
Solid state physics
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Zusammenfassung:We studied giant magneto‐impedance (GMI) effect, magnetic and structural properties of thin Finemet‐type (FeCuNbSiB) glass‐coated microwires fabricated by Taylor‐Ulitovsky technique with different composition and diameters, with the aim to achieve the optimal conditions for improving the final GMI response. We observed that GMI can be tailored either by controlling the microwires microstructure through the thermal annealing, or by controlling the quenching rate velocity during the fabrication processes. Finally, we obtained up to 50% GMI in the as‐prepared samples and up to 100% in annealed microwires. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:1862-6351
1610-1642
DOI:10.1002/pssc.201300708