Pulsed Electrodeposition of Nanocrystalline CoNiFe Soft Magnetic Thin Films

Takuya Nakanishi*, Masaki Ozaki, Hyo Seung Nam, Tokihiko Yokoshima, Tetsuya Osaka

*この研究の対応する著者

研究成果: Article査読

51 被引用数 (Scopus)

抄録

A pulsed electrodeposition method was applied to the preparation of soft magnetic CoNiFe films in the compositional region corresponding to the phase boundary between face-centered cubic (fcc) and body-centered cubic (bcc) structures. Crystalline grain size was found to be almost the same, smaller than 10 nm, and independent of the duty cycle which is the ratio of the pulse-on time to the pulse-on plus pulse-off period. Depending on the operating conditions, the ratio of bcc to fcc varied. Current efficiency decreased with decreasing duty cycle and pulse current density. The intensity ratio of bcc(110) to fcc(111) X-ray diffraction peaks showed a maximum at the operating conditions in which the transition from kinetic to mass-transfer controlled deposition occurred with only a slight increase of Fe content (approximately 1 atom %). Magnetic properties were suggested to be controllable by adjusting the bcc-fcc ratio using pulsed electrodeposition.

本文言語English
ページ(範囲)C627-C631
ジャーナルJournal of the Electrochemical Society
148
9
DOI
出版ステータスPublished - 2001 9月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

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