MAGNETIC AND MAGNETOELASTIC PROPERTIES OF AMORPHOUS RIBBONS

A phenomenological model for the magnetic and magnetoelastic behaviour of the field-annealed magnetostrictive ribbon is proposed. The basic hypothesis is that the magnetic domain coupling,energy due to the inho mogeneity inherent to amorphous state is dependent on the reduced magn etization. The model takes into account the anisotropy energy, Zeeman energy, magnetoelastic energy and magnetic domain coupling energy. The magnetization, engineering magnetostriction and Young's modulus are d erived as continuous functions of the applied magnetic field and stres s.