Abstract

The influence of transverse magnetic field annealing on a domain structure, the value of the induced transverse magnetic anisotropy K u, coercivity and magnetic remanence of Co 71.5Fe 2.5Mn 2Mo 1Si 9B 14 amorphous ribbons of different widths (6, 11, 15 mm) has been investigated. Near-full reorientation of the ribbon easy axis from the longitudinal to the transverse direction and the highest value of K u = 110 J/m 3 were obtained for the transverse magnetic field H T = 160 kA/m. On the other hand, only partial reorientation of the easy axis was developed for smaller values of H T. In the initial magnetizing field range, the magnetization process proceeds by reversible rotation of the magnetization vector for H T = 160 kA/m. Domain wall movements are predominant for H T = 8 and 40 kA/m.

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