Mossbauer measurements of giant moments in Ni3Al and Ni3Ga

Abstract
Hyperfine fields in very dilute alloys of Fe in Ni3Al and Ni3Ga have been measured by the Mossbauer effect. The effective moments, determined by Brillouin fits, were studied as a function of the host composition. The maximum values observed were 39 mu B for Ni3Al and 84 mu B for Ni3Ga which are the highest reported for both systems.