Influence of Cu dope on the structural behavior of MgFe2O4 at various temperatures

The influence of Cu doping on the MgFe2O4 crystal and magnetic structure has been studied at various temperatures. A series of Mg1-xCuxFe2O4 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) spinels have been prepared by a chemical solid-state reaction method. The diffraction patterns confirmed that the formation of the single cubic spinel phase obtained for samples with a Cu content of up to 0.6. The second phase of a small amount of tetragonal CuFe2O4 phase was observed in the sample with x = 0.8. Cu doping increased and stabilized the magnetization of MgFe2O4 at a high temperature. The crystal phase of Cu doped MgFe2O4 was not changed up to 753 K.