Japanese Journal of Applied Physics · 1983 · 104 citations · 2 references
Natural SciencesMaterials EngineeringMaterials ScienceMagnetic MaterialsMaterials ChemistryThin FilmsFerrimagnetic MaterialsFerromagnetic MaterialsMagnetic OxidesMagnetic Properties Of SolidsMagnetic Thin FilmsThin Film Magnetic PropertiesAnodic OxidationFerrimagnetic Thin FilmsFerrite SpinelsFerrite Thin FilmsOxidationPolycrystalline Magnetic FilmsSpinel FerritesThin-film Magnetic Materials
We describe the principle and performance of the new method. It facilitates formattion of crystalline-spinel films at low temperature (<80°C) for various compositions, and on substrates of not only metal but also oxide and organic compounds. Hydrolyzed metal ions in an aqueous solution (pH=6∼ 11 , T =40∼80°C) are incorporated into the spinel film on the substrate associated with air oxidation or anodic oxidation of ferrous ion. We have plated Fe 3 O 4 and CoFe 2 O 4 films on substrate of Cu, PET and stainless steel. They are polycrystalline with no preferred orientation, exhibiting no magnetic anisotropy. Polar Kerr rotation of these films has been measured.
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