Propagation of domain walls in bistable amorphous wires and microwires

• Published in: Journal of non-crystalline solids Vol. 287; no. 1; pp. 370 - 373
• Main Authors: Puerta, Sergio, Cortina, Daniel, Garcı́a-Miquel, H., Chen, D.-X., Vázquez, Manuel
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2001; Elsevier
• Subjects: Amorphous and nanocrystalline magnetic materials; quasicrystals; Amorphous and quasicrystalline magnetic materials; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Domain effects, magnetization curves, and hysteresis; Domain walls and domain structure; Exact sciences and technology; Magnetic properties and materials; Magnetization curves, hysteresis, Barkhausen and related effects; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Physics; Studies of specific magnetic materials; A180; M100; 75.60.−d; Silicon alloys; Magnetization; Amorphous alloy; Iron alloys; Domain wall motion; Barkhausen effect; Experimental study; Wire; Boron alloys; Transition element alloys
• ISSN: 0022-3093; 1873-4812
• DOI: 10.1016/S0022-3093(01)00600-7

The magnetization process of bistable amorphous wires and microwires occurs by a single Barkhausen jump that is ascribed to the propagation of a domain wall along the wire. Recent results on wall propagation are here introduced for both kind of wires. Two experiments are performed based on the classical Sixtus–Tonks method, exciting by alternate homogeneous field and locally under a static field. Velocity and damping characteristics of the propagation wall are obtained.