Abstract
In the present ferrites (soft & hard) series, Saturation Magnetization, increases only at lowers concentration of Indium. The cation distribution from Mössbauer analysis indicates that Indium ion at lower concentration (10 to 20%) goes to tetrahedral site only, whereas higher concentration it goes octahedral sites also. Magnetization has been explained on the basis of super exchange hyperfine interactions as well as cation distribution of magnetic ions as per the Neel's two sub lattice model of ferromagnetism. In all the chosen ferrite series magnetic behavior is consistent with substitution of dopant (In3+ ions). Ferromagnetic results are further authenticated by Mössbauer Spectroscopic analysis.