EFFECT OF JUMP LENGTH OF ELECTRON AND CATION DISTRIBUTION STUDY OF Co1-xZnxFe2-xAlxO4

Abstract

The zinc and aluminum co-substituted cobalt ferrite of the series Co 1-x Zn x Fe 2-x Al x O 4 were prepared by wet chemical co-precipitation method. The variation of lattice constant and jump length of electron of wet and annealed samples was studied. The variation of lattice constant and jump length of electron of wet and annealed wet samples shows that it increases up to x=0.2 thereafter x>0.2 it decreases in both the cases. In the present work the values of tetrahedral and octahedral bond length (dAx) and (dBx), shared tetrahedral and octahedral edge was also studied. The cationic distribution is calculated on the basis X-ray diffraction method. The cation distribution estimated from X-ray intensity ratio calculations suggest that, Zn 2+ ions occupies only tetrahedral (A) site whereas Al 3+ ions occupies both tetrahedral (A) and octahedral [B] sites.