(1) Microstructure Characterization of ZnFe2-xMxO4 (M = Bi, Y and x = 0.1, 0.2) Ferrites by the Rietveld Refinement
The microstructure of the ferrites was analyzed by the Reitveld refinement method.
The Bi-containing ferrites revealed a decrease in the lattice parameter as the Bi3+ concentration is increased, due to the distortion of the ferrite lattice.
There was a minor distortion in the ZnFe1.9Y0.1O4 ferrite lattice. A minor yttrium oxide phase coexisted with the ZnFe1.8Y0.2O4 spinel phase.