Abstract
Amorphous sputtered Fe/Tb Multilayers were annealed at different temperatures in a high-vacuum furnace and investigated at 300 K by conversion electron Mössbauer spectrometry and by high-angle X-ray diffraction, in order to study the effects of annealing on the structural and magnetic properties. At low annealing temperatures, a demixing process can be observed, which sharpens the interfaces and increases the perpendicular anisotropy. At intermediate temperatures, the mixing of the layers progressively destroys the layered structure and the sample exhibits the magnetic properties of the corresponding amorphous alloy. At higher annealing temperatures, the crystallization of α-Fe is observed.
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