ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We investigate the evolution of the magneto-impedance (MI) response of Fe73.5Cu1Nb3Si13.5B9 glass-covered wires with the annealing temperature, starting from the as-cast amorphous state up to 600 °C. As-cast FeCuNbSiB amorphous glass-covered wires display a MI ratio of about 1%, this value increasing with the annealing temperature to about 5% for 550 °C when the nanocrystalline phase appears. For wires which have had the glass removed, the MI ratio increases from 5% for the as-cast amorphous state up to 28% after the appearance of the nanocrystalline phase. The MI is larger than that found in CoFeSiB amorphous wires after glass removal. Annealing over 550 °C leads to a decrease of the MI ratio for both glass-covered samples and samples with the glass coating removed. The results demonstrate the role of soft magnetic properties on the sensitivity of the MI effect. © 1998 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.367926
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