Abstract

When vicalloy wire (40Fe-50Co-10V) is twisted, the outer areas in the wire, which suffer greater stress as a result of twisting, take on a smaller coercivity. The pulse inducing characteristics and domain wall propagation of such compound magnetic wire are described. It was found that the pulse voltage induced by Large Barkhausen jump is not proportional to the value of (H-H0) and H is decreased by applying a torsional stress to the wire, where H is the critical field of domain nucleation at the flux reversal, and H0 is the critical field of domain wall displacement.

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