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Electrodeposited Fe-Co Films Prepared from a Citric-acid-based Plating Bath
T. Yanai,H. Uto,T. Shimokawa,M. Nakano,H. Fukunaga,K. Suzuki 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
Electrodeposited Fe-Co films are commonly prepared in a boric-acid-based bath. In this research,we applied citric acid instead of boric acid for the plating of Fe-Co films because boron in the wastebath is restricted by environmental-protection regulations in Japan. We evaluated the effect ofcitric acid on the magnetic and structural properties of the films. The saturation magnetization ofthe Fe-Co films slightly increased while the Fe content in the Fe-Co films decreased with increasingcitric acid concentration. The lowest coercivity value of 240 A/m was obtained at a citric acidconcentration of 100 g/L. The plating bath with this citric acid concentration enabled us to obtainFe-Co films with high saturation magnetizations and smooth surface morphologies.