Domain wall propagation in Fe-rich glass covered amorphous wires

The domain wall velocity in Fe77.5Si7.5B15 glass covered amorphous wires, b efore and after glass removal was determined. The domain wall axial velocit y linearly increases with driving magnetic field. The driving magnetic fiel d is higher for glass covered amorphous wires than for conventional ones ha ving the same composition. The domain wan velocity increases when the diame ter of the metallic core decreases and the critical field of reverse domain nucleation decreases with increasing the wire diameter. After glass remova l, the nucleation and drive fields decrease. (C) 2001 Elsevier Science B.V. All rights reserved.