Propagation of domain walls in bistable amorphous wires and microwires

The magnetization process of bistable amorphous wires and microwires occurs by a single Barkhausen jump that is ascribed to the propagation of a domai n wall along the, wire. Recent results on wall propagation are here introdu ced for both kind of wires. Two experiments are performed based on the clas sical Sixtus Tonks method, exciting by alternate homogeneous field and loca lly under a static field. Velocity and damping characteristics of the propa gation wall are obtained. (C) 2001 Elsevier Science B.V. All rights reserve d.