Nickel contribution to the magnetism of Fe-Ni-Zr metallic glasses

Abstract

$^{61}\mathrm{Ni}$ M\"ossbauer measurements have been performed on metallic glasses ${\mathrm{Fe}}_{80}$${\mathrm{Ni}}_{10}$${\mathrm{Zn}}_{10}$ and ${\mathrm{Fe}}_{70}$${\mathrm{Ni}}_{20}$${\mathrm{Zn}}_{10}$ at 4.2 K. The presence of large hyperfine magnetic fields, which are the same for both glasses, shows that Ni atoms participate in the magnetism of the glasses. The value of the Ni magnetic moment is estimated to be 0.6${\ensuremath{\mu}}_{\mathrm{B}}$.