Structure of iron nanolayers embedded in amorphous alloys

Metalloid-free magnetic amorphous layers have been searched for their presumably high magnetic density. Multilayers of iron and amorphous boron-doped cobalt-iron have been studied with this in mind. Samples with various Fe thicknesses and a constant thickness of amorphous boron doped cobalt-iron were prepared. The aim was to reduce the metalloid content as much as possible but retaining the amorphousstructure.Transmission electron microscopy, x-ray diffraction studies, and Mössbauer spectroscopy have been applied to elucidate physical properties. The iron-partial phonon density of states was measured showing differences between the amorphous and crystalline films