⁵⁷Fe mossbauer studies of the (RE)Fe₃intermetallic compounds

Abstract

See also ibid., vol.5, no.5, p.1037 (1975). The methods described in the previous paper are used to analyse the complicated 57fe mossbauer spectra of the (re)fe3 intermetallic compounds, where re=gd, tb, dy, ho, er and y. The resultant hyperfine parameters are then used, in conjunction with local dipolar field calculations, to infer directions of preferred magnetization. In particular, it is shown that at 77k, hofe3 magnetizes along an a axis, tbfe3 along a b axis and erfe3 either along or close to a c axis. The case of dyfe3 however is slightly more complex and it appears that this compound does not magnetize along a principal hexagonal axis. Some similarities between the mossbauer spectra of the (re)fe2 and (re)fe3 compounds are also noted.