Ferrite plating in aqueous solution: New technique for preparing magnetic thin film

Abstract

This paper describes the principle and performance of a new technique which facilitates the formation of crystalline spinel film at low temperature (T+ and MOH⁽ⁿ⁻¹⁾⁺ in an aqueous solution (pH=6∼11,T=40∼80 °C) are adsorbed on a substrate surface which react into spinel film associated with anodic or air oxidation of the FeOH⁺ ion. We have plated Fe₃O₄ and CoFe₂O₄ films on a substrate of Cu, polyethylene terephthalate, and stainless steel. They are polycrystalline with no preferred orientation, and exhibit no magnetic anisotropy. The polar Kerr rotation of these films has been measured.