L. Brunetti et al., Comparison between magneto-impedance properties of Fe73.5Cu3Nb1Si13.5B9 melt-spun and glass-covered wires, SENS ACTU-A, 91(1-2), 2001, pp. 203-206
A comparison between magneto-impedance properties measured in magneto-stric
tive nanocrystalline Fe-based melt-spun and glass-covered wires is presente
d as a function of microstructure. Giant magneto-impedance response has bee
n investigated in both low- and high-frequency regions for different therma
l treatments. A strong correlation with the domain structure, affected by t
he microstructure of the material, has been observed. Glass-covered wires t
urn out to be characterised by higher GMI values at all the studied frequen
cies with respect to rapidly solidified wires. (C) 2001 Elsevier Science B.
V. All rights reserved.