Magnetic Features at the Surfaces of Nanocrystalline Ribbons

Magnetic behaviour of Nanoperm $Fe_{90}Zr_7B_3$ nanocrystalline alloy is studied by surface sensitive techniques comprising atomic force microscopy and magnetic force microscopy. Correlation of structural arrangement and magnetic order including the orientation of net magnetization is obtained by the help of the Mössbauer spectrometry. As-quenched amorphous alloys show no magnetic features. After annealing, maze magnetic domains have developed. Their shape is governed by surface crystallization. Position of net magnetization out of the ribbon plane by about 26° was determined by the Mössbauer spectrometry.