Characterization of FePt film electrodeposited with a ferric electrolyte

Serhiy Cherevko; Jie Fu; Ki Youn Song; Chan-Hwa Chung

Korean Journal of Chemical Engineering, Vol.26, No.6, 1766-1769, November, 2009

DOI10.1007/s11814-009-0244-1 Export Citation

Characterization of FePt film electrodeposited with a ferric electrolyte

Serhiy Cherevko, Jie Fu, Ki Youn Song¹, and Chan-Hwa Chung^†

Advanced Materials and Process Research Center for IT, Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
¹LCD Technology Center, Samsung Electronics Co., Yong-in 446-711, Korea

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The electrodeposition of FePt alloy film in a novel ferric electrolyte that could be an alternative electrolyte to the usual non-stable baths was investigated. The influence of the applied current density and electrolyte temperature on the composition of the alloy was studied. It was found that co-deposition of oxygen can be reduced by deposition at higher temperature of 65 ℃ than room temperature. The as-deposited film had a face-centered cubic (γ-Fe,Pt) structure, and after an additional annealing process, the structure was changed to a face-centered tetragonal structure. The as-deposited FePt film also shows good resistance to corrosion and its coercivity was about 0.1T, which makes it suitable for use in applications compatible with silicon technology.

Keywords:Alloys;Electromechanical Techniques;Magnetic Structures

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[3] Leistner K, Krause A, Fahler S, Schlorb H, Schultz L, Electrochim. Acta, 52(1), 170 (2006)

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[8] Gao JH, Zhan QF, He W, Sun DL, Cheng ZH, Appl. Phys. Lett., 86, 232506 (2005)

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