Abstract

The effect of the plating current density in nanocrystalline electrodeposition of permalloy on the crystal grain size and consequently on the soft magnetic properties of the deposited layer of Ni/sub 80/Fe/sub 20//Cu composite wire was investigated. X-ray diffraction was used to measure the crystal grain sizes. Transmission electron microscopy was used to verify the grain size values calculated using Scherrer's formula. The coercivity of the deposited Ni/sub 80/Fe/sub 20/ increased while the magneto-impedance effect ratio of the Ni/sub 80/Fe/sub 20//Cu wire decreased for increasing current density in the low current density range (0.6 - 2 A/dm/sup 2/). Opposite trends for these soft magnetic properties were observed in the high current density range (2 8 A/dm/sup 2/).

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