Temperature Dependence of the ΔE-Effect for Amorphous Metal Alloy Ribbons with Different Orientations of the Easy Magnetization Axis

Effect of orientation of the induced uniaxial magnetic anisotropy axis on the temperature dependences of the Δ E -effect for ribbons having Fe 64 Co 21 B 15 amorphous metal alloy composition after thermomagnetic treatment at temperatures from 270 to 330°C is investigated. The magnetic field strength at which the absolute value of the negative Δ E -effect is maximal decreases with increasing tilt angle of the induced uniaxial magnetic anisotropy axis with respect to the direction perpendicular to the ribbon rolling axis. This decrease is caused by the decrease in the field of the Bloch–Néel transition of charged domain walls during magnetization of the ribbon with a tilted easy magnetization axis.