56,57,60CoFe NMR/ON, hyperfine anomalies and γ-factors of cobalt isotopes

The results of NMR/ON measurements on56'57'60Co isotopes in iron are presented. To avoid the uncertainties caused by local demagnetizing field inhomogenities the measurements on two cobalt isotopes in one sample have been carried out. The values of nuclearγ-factor ratiosγ57/γ60 = 1.805 (20),γ60/γ56 = 0.761 (20),γ56/γ57 = 0.726 (20) and hyperfine anomalies56Δ60 = -0.036 (10),60Δ57 = 0.017 (10) and57Δ56 = 0.018 (10) have been calculated from the experimental results.