57Fe and119Sn Mössbauer investigations on some substituted barium hexaferrites

57Fe and119Sn Mossbauer measurements have been carried out on powder samples of three differently substituted M-type barium hexaferrites. By57Fe Mossbauer measurements in an external magnetic field applied parallel to the γ-ray direction, we found a canted spin structure for all samples. Furthermore, we detected a strong preference of the Sn4+ ions for the 4f2 sites. From57Fe Mossbauer measurements aboveT N, we conclude that the substitution does not influence the 2b sites. The analysis of the magnetically split119Sn Mossbauer spectra at room temperature in the case of the Co-Sn and Zn-Sn substituted samples shows a strong difference between the two. The spectra were interpreted due to the …