Abstract
Circumferential magnetization curves have been derived from the imaginary component of the impedance response in an Fe 73.5Si 13.5B 9Cu 1Nb 3 amorphous wire. Measurements were performed at 1 kHz driving frequency, and 0.05– 20 mA rms current amplitude range. Axial DC fields from 0 to 100 Oe have been simultaneously applied in order to detect the magnetoinductive effect. The circular magnetization curves are compared with quasi-static longitudinal magnetization ones, and the results are analyzed on the basis of the core-shell model for a wire with positive magnetostriction.
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