Hyperfine Field of 197Au in Au–Fe Alloys

Abstract
We have investigated the magnetic hyperfine splitting of 197Au by means of the Mössbauer effect in Au‐rich Au–Fe alloys. The hyperfine field appears with the onset of the magnetic order and the magnitude increases with concentration of iron. The spectra are broadened and unsymmetric due to the variety of compositional environments of the Au atoms in the alloys.