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- Title
Magnetoimpedance Effect in Field Annealed (FeNi)<sub>78</sub>Nb<sub>7</sub>B<sub>15</sub> Amorphous and Nanocrystalline Bilayer Ribbons.
- Authors
VARGA, M.; MARCIN, J.; CAPIK, M.; JANIČKOVIČ, D.; ŠVEC, P.; ŠKORVÁNEK, I.
- Abstract
The influence of the magnetic field annealing on the magnetoimpedance effect has been investigated in rapidly quenched (Fe0.5Ni0.5)78Nb7B15 monolayer and bilayer thin ribbons. The highest impedance ratio value (ΔZ/Z)max = 72% and the maximum field sensitivity ηmax = 12 %/Oe was obtained in the bilayer ribbon, annealed under longitudinal magnetic field at 773 K that exhibited nanocrystalline structure. The higher values of (ΔZ/Z)max in bilayer ribbons, as compared to their monolayer counterparts, are attributed to the increased ratio of their thickness to the penetration depth.
- Subjects
GIANT magnetoimpedance effect; AMORPHOUS alloys; ANNEALING of metals; DIFFERENTIAL scanning calorimetry; TRANSMISSION electron microscopy; HYSTERESIS loop
- Publication
Acta Physica Polonica: A, 2014, Vol 126, Issue 1, p122
- ISSN
0587-4246
- Publication type
Article
- DOI
10.12693/APhysPolA.126.122