HYPERFINE INTERACTIONS IN AMORPHOUS AND NANOCRYSTALLINE FE80TI7CU1B12ALLOY

Fe-57 Mossbauer spectroscopy is used to elucidate the nature of the hy perfine interactions present in amorphous and nanocrystalline forms of Fe80Ti7Cu1B12 alloy. Two mutually independent distributions of hyperf ine fields and one sextet of Lorentzian lines are employed to reproduc e the broad (atoms in amorphous rest and interface zone) and narrow (o rdered) parts of the spectra, respectively. The presented conclusions are derived from three-dimensional mapping of the hyperfine field dist ributions corresponding to both amorphous and interfacial spectral com ponents. The individual distributions are decomposed into Gaussian com ponents which characterize different types of hyperfine interactions.