Electronic Materials Letters , vol. 4, no. 3, pp.135-139, September, 2008

DOI :

Magnetic Properties of Fe-Pt Films Electrodeposited by Diffusion Control

Fei Li¹, Tae Hoon Kim¹, Bon Heun Koo¹, Chan Gyu Lee^1,*, and Toshitada Shimozaki^2
1Changwon National University, ²Kyushu Institute of Technology

Abstract : Fe-Pt films were produced by a simple method of electrodeposition under diffusion control, using a novel bath system containing small amounts of Fe²⁺ and PtCl₆^2-. The films were annealed and, their structure and magnetic properties were studied. The sample started to show some ordering at a temperature less than 550℃, which is lower than the previously reported ordering temperature. A coercivity of 3.2 kOe, comparable to previous data, and a squareness of 0.7 were obtained after the film was vacuum-annealed at 550℃ for 15 min. The films displayed a longitudinal magnetic anisotropy. The obtained results promise this method to be a new choice for electrodeposition of Fe-Pt films.

Keyword : Fe-Pt, electrodeposition, diffusion control, L1₀ structure, magnetic properties