MOSSBAUER STUDY OF ION-IMPLANTED COXGA1-X ALLOYS

Mossbauer effect studies of implanted and synthesized CoxGa1-x alloys are presented. The spectra showed broad lines indicating at least two components corresponding to Co sites in the two sublattices. Ion impla ntation resulted in an increase of the Co population in antistructure positions. The broad spectral component of Fe-57 in the Co sublattice was attributed to electric quadrupole splitting induced by vacancies a nd antistructure atoms lowering the local symmetry. A new attribution of the Mossbauer parameters to the various atomic configurations is su ggested.