Electrodeposition of highly functional thin films for magnetic recording devices of the next century

Tetsuya Osaka

研究成果: Conference article査読

172 被引用数 (Scopus)


A review is presented of the recent progress in research and development of soft magnetic films for magnetic recording heads of the future primarily on the basis of the work performed by the author's research group. Films of CoNiFe ternary alloy with high saturation magnetic flux density BS and low coercivity, HC were successfully produced by electrodeposition. A typical film, designed as `HB-CoNiFe', had the composition of Co65Ni12Fe23 (at.%) with BS = 2.0-2.1 T and HC<2 Oe. Properties other than BS and HC were also investigated; namely, magnetostriction, λS, corrosion properties, and film resistivity ρ. The key to the success in obtaining low HC with high BS was to form film with very fine crystals. The inclusion of small amount of sulfur was found to be essential for producing such a film with the desired magnetic properties. The film has been applied to the construction of a new type of merged-GMR head, which is considered as a breakthrough for materializing ultra high-density magnetic recording.

ジャーナルElectrochimica Acta
出版ステータスPublished - 2000 6月 23
イベント50st ISE Meeting: Electrochemical Materials Science - Pavia, Italy
継続期間: 1999 9月 51999 9月 10

ASJC Scopus subject areas

  • 化学工学一般
  • 電気化学


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