Preparation of some metal ferrite MFe2O4 thin films through a nonaqueous sol method

Fe2O3, CoFe2O4, CuFe2O4, MnFe2O4 and NiFe2O4 films were prepared by a nonaqueous sol method. The sols were prepared by dissolving 10% by weight of the corresponding nitrates in ethylene glycol and heating the solution at 85 °C under nitrogen. Fe2O4 films were prepared by reducing the initial Fe2O3 films in H2Ar (1090).