Electrochemical preparation of soft magnetic CoNiFeS film with high saturation magnetic flux density and high resistivity

M. Takai*, K. Hayashi, M. Aoyagi, T. Osaka

*この研究の対応する著者

研究成果: Article査読

64 被引用数 (Scopus)

抄録

A soft magnetic CoNiFeS film as a write head core material for the next generation was prepared by electrodeposition. In this system, thiourea was used as an additive in the CoNiFe ternary alloy plating bath. The most suitable magnetic properties were obtained at the film composition of (Co73Ni12Fe15)99.1S0.9 [atomic percent (a/o)] with a high saturation magnetic flux density (Bs) of 1.7 T, a high resistivity (ρ) of 51 μΩ cm, and a low saturation magnetostriction (λs) of 4.4 × 10-6. The film consisted of fine minute crystal grains 5 to 10 nm in diameter. The S content of ca. 0.9 a/o is believed to be responsible for the formation of small crystal grains with low coercivity and high resistivity.

本文言語English
ページ(範囲)L203-L204
ジャーナルJournal of the Electrochemical Society
144
7
DOI
出版ステータスPublished - 1997 7月

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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