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Fe-Pt thick-film magnets prepared by electroplating method

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Title: Fe-Pt thick-film magnets prepared by electroplating method
Authors: Yanai, Takeshi / Furutani, K. / Ohgai, Takeshi / Nakano, Masaki / Suzuki, K. / Fukunaga, Hirotoshi
Issue Date: 17-Apr-2015
Publisher: American Institute of Physics Inc.
Citation: Journal of Applied Physics, 117(17), 17A744; 2015
Abstract: Fe-Pt thick-films were electroplated on Ta substrates using a direct current, and the magnetic properties of the film were evaluated. The Fe-Pt films with the thickness from 3 to 23 μm were obtained by changing in the plating time from 2 to 20 min. As the as-plated Fe-Pt films had the disordered fcc (face-centered-cubic) structure and low coercivity (<5 kA/m), we annealed the films at 700 °C for 60 min. The annealing induced the phase transformation from fcc structure to fct (face-centered-tetragonal) one, and we consequently obtained the Fe50Pt50 thick-films with large coercivity of approximately 700 kA/m. The large coercivity was observed in the wide thickness range for our experimental conditions. Therefore, we concluded that our prepared Fe-Pt film is one of the attractive thick-film magnets.
URI: http://hdl.handle.net/10069/35442
ISSN: 00218979
DOI: 10.1063/1.4918698
Rights: © 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/35442

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