Title :
Domain structure studies by means of high-resolution ΔE measurements
Author :
Hogsdon, Steven N. ; Squire, Patrick T. ; Atkinson, Derek
Author_Institution :
Sch. of Phys., Bath Univ., UK
fDate :
11/1/1994 12:00:00 AM
Abstract :
High-resolution measurements of the field dependence of the Young´s modulus are reported for two compositions of as-quenched amorphous wires, and for a sputtered thin film of metallic glass. The data reveal details of moment rotation processes that, combined with magnetization and magnetostriction measurements, help to elucidate the domain structures. The results for the amorphous wires show that for the Co-based composition no irreversible moment rotation is associated with the large Barkhausen effect, unlike the behaviour of Fe-based wire. The results for the sputtered film show that the hysteretic magnetization involves almost entirely 180° domain wall movement
Keywords :
Barkhausen effect; Young´s modulus; amorphous magnetic materials; magnetic domains; magnetic hysteresis; magnetic moments; magnetostriction; metallic glasses; sputtered coatings; Barkhausen effect; Co-based composition; Fe-based wire; Young´s modulus; as-quenched amorphous wires; domain structures; hysteretic magnetization; magnetization; magnetostriction; metallic glass; moment rotation; sputtered thin film; Amorphous magnetic materials; Amorphous materials; Magnetic anisotropy; Magnetic domains; Magnetic field measurement; Magnetic materials; Magnetostriction; Perpendicular magnetic anisotropy; Saturation magnetization; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
