Fe-Pt thick-film magnets prepared by electroplating method

T. Yanai, K. Furutani, T. Ohgai, M. Nakano, K. Suzuki, H. Fukunaga

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)

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 lm were obtained by changing in the plating time from 2 to 20min. 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 60min. The annealing induced the phase transformation from fcc structure to fct (face-centeredtetragonal) 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
Original languageEnglish
Pages (from-to)1 - 3
Number of pages3
JournalJournal of Applied Physics
Volume117
Issue number17
DOIs
Publication statusPublished - 2015

Cite this

Yanai, T., Furutani, K., Ohgai, T., Nakano, M., Suzuki, K., & Fukunaga, H. (2015). Fe-Pt thick-film magnets prepared by electroplating method. Journal of Applied Physics, 117(17), 1 - 3. https://doi.org/10.1063/1.4918698