Fabrication of Fe-Ce-O granular films by metal-oxide co-electrodeposition

Fe-Ce-O films are synthesized by metal-oxide co-electrodeposition from an aqueous solution containing FeSO/sub 4/, CeCl/sub 3/, L-ascorbic acid, Na/sub 2/SO/sub 4/and (NH/sub 4/)/sub 2/SO/sub 4/ maintained 333 K. The saturation magnetization of the films fabricated from the reaction solution with (NH/sub 4/)/sub 2/SO/sub 4/ becomes larger than that of the films prepared from a non (NH/sub 4/)/sub 2/SO/sub 4/ solution. It is found that the addition of (NH/sub 4/)/sub 2/SO/sub 4/ is necessary for obtaining the Fe-Ce-O films with uniform surface and higher magnetization.