Hyperfine interactions in Zr(Fe1−x Al x )2 measured forx≤0.20 by TDPAC and Mössbauer spectroscopy

Abstract

Mossbauer (57Fe) and TDPAC spectroscopy (181Hf) have been used to study quasibinary compounds Zr(Fe1−xAl x )2 forx≤0.20. It has been found that the dependence of the mean values of the hyperfine magnetic field, quadrupole splitting and isomer shift on the Al concentrationx is strong. The dependence of the hyperfine magnetic field on the number of Al atoms as nearest and next-nearest neighbours of57Fe has been established. The TDPAC results also indicate a dependence of the hyperfine field on181Ta on Al concentration.