Easy-plane magnetic anisotropy induced by stress-annealing in FINEMET-type materials

摘要

It is shown that annealing under stress of FINEMET-type metallic glass ribbon (FeCuNbSiB) induces magnetic anisotropy of an easy-plane type (cross-section of the ribbon). This conclusion has been drawn analyzing ex- perimental results obtained by means of Kerr-effect(domain structure) and mossbauer spectroscopy operating in the so-called "magic angle" configura- tion which allows us to calculate all three spatial components of magnetiza- tion. Additionally, it is also shown that no crystallographic texture is created in the sample after stress-annealing, the feature which would have been an origin of the observed anisotropy.