Effect of Field Annealing on Compositional Dependences of Some Magnetic Properties in (Co1−xFex)75Si15B10 Metallic Glasses

Abstract

The magnetic aftereffect (MAE) δr/r, the perminvar critical field Hcr, the initial susceptibility x10, the coercive field Hc, and the magnetically induced anisotropy (MIA) Kuin in (Co1−xFex)75Si15B10 (0 ≦ x ≦ 1) metallic glasses are examined. The ribbons are subjected to different kinds of heat treatments: annealings in parallel and transverse magnetic field. The results are discussed in terms of the theory of two‐level systems.

Directional Ordering in Amorphous Fe43Ni43Zr7Cu1B6Ferromagnetic Alloys

“…As it was shown in [3], the highest Curie temperature of the amorphous matrix, in the Fe 86−x Ni x Zr 7 Cu 1 B 6 alloys, belongs to x = 43. Such concentration of iron and nickel, respectively, predicts the most intensive influence of the ferromagnetic atom pair reorientation (directional ordering) on the soft magnetic properties of investigated alloys, in accordance with [4,5].…”

Temperature evolution of magnetic susceptibility during devitrification of Cu-free HITPERM alloy

“…That means that annealing at even very high temperature does not lead to the disappearance of the domain structure. However, such annealing results in the stabilization of the domain structure through the atom pair directional ordering, which is the strongest for the composition with 50-50 at% of the Fe and the Co [13,14]. The atom pair directional ordering has several macroscopic manifestations [15].…”