Mössbauer Spectrometry in FeMoCuB-Type Nanocrystalline Alloys

The applicability of the Mössbauer spectrometry to the study of $Fe_{91-x}Mo_8Cu_1B_x$ (x = 12, 15, 17) nanocrystalline alloys prepared by controlled annealing of ribbon-shaped amorphous precursors is demonstrated. Differences between both surfaces of the ribbons are pointed out to be due to preparation conditions. Conclusions from the Mössbauer spectrometry are supported by diffraction of synchrotron radiation, X-ray diffraction, and atomic field microscopy investigations.