Behaviour of up to 25% iron doped BSCCO ceramic oxides

XRD analysis and Mössbauer Spectroscopy studies were performed on samples of the ceramic oxide of nominal composition Bi₂Sr₂CaCu₂O₈ doped with iron substituting copper up to 25%. XRD results point out that increased doping favors the growth of the n=1 phase relative to the n=2 phase. RT Mössbauer spectra were fitted with three doublets D₁, D₂, and D₃, corresponding D₁ and D₂ to Fe in the n=2 phase, and D₃ to Fe in the n=1 phase. The Fe ions localization, in the Cu₂O planes, and their effect on structural and electronic properties, are discussed.