INDUCED PULSE VOLTAGE IN TWISTED VICALLOY WIRE WITH COMPOUND MAGNETICEFFECT

When a Vicalloy wire(10wt%Fe-50Co-10V) is twisted, the coercivity redu ces due to large stress. The pulse-inducing characteristics and domain wall propagation nas investigated utilizing this effect on such compo und magnetic wire. We found that the generating point of inverse nucle ation varied according to the strength of set field Hs and the demagne tizing field near the end of the wire, when the entire compound magnet ic mire is excited by asymmetrical field. Moreover, re found that the velocity of domain wall propagation in the smaller coercivity! layer t o be 400-500(m/s) at Hs=16-25 Oe.