Domain wall propagation in Fe-rich glass covered amorphous wires

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