FORMING A MAGNETO-OPTICAL POLYCRYSTALLINE COBALT FERRITE LAYER ON A SUBSTRATE

摘要

An aerosol comprising a solution (as the disperse phase) consisting of a solvent and salts of metals, the oxides of which metals form the desired ferrite, is sprayed onto a heated substrate. If necessary, the deposited layer is heated so that the cobalt ferrite has a spinel crystal structure. A preferred ferrite has composition CoxFe3-xO4 wherein 0.3 x 1.5