A 57Fe Mössbauer study of Nd2(Fe1−xCox)14B

A Mossbauer study of the compositional series Nd2(Fe1−xCox)14B confirmed the preferential occupation of j2 sites by the Fe atoms at least for x>0.6 and the strong dependence on x of the relative amount of Fe distributed on this type of site. The j2‐site preference of Fe also influences the hyperfine field of Fe at the j2 site as a consequence of the higher concentration of Co around the j2 sites as compared to that of a statistical distribution.