Enhancement of the crystal size and magnetic properties of Mg-substituted Co ferrite

Standard ceramic technique was used to prepare the ferrite Co1-xMgxFe2O4 0.0 <= x <= 1. FTIR and X-ray diffraction were performed to assure the formation of the sample in the proper form. The obtained lattice parameter was interpreted on the basis of cation distribution. The replacement of Co2+ instead of Mg2+ on B sites expands slightly the size of the lattice. The sample MgFe2O4 does not exhibit high thermal stability. The general trend of chi M with Mg content is the decrease in its values by decreasing x from 1 to approximate to 0.6. The obtained data was interpreted also on the basis of redistribution of iron ions between the two sublattices. (C) 2009 Elsevier B.V. All rights reserved.