Recording Characteristics of Electroless-plated CoNiReP/NiWP Double Layers

H. Matsubara, S. Mitamura, K. Noda, T. Osaka, F. Goto

研究成果: Article査読

抄録

Electroless-plated CoNiReP/NiWP double layer films were investigated for perpendicular magnetic recording media as flexible disks. The magnetic properties of a CoNiReP recording layer, such as a saturation magnetization (Ms) value and squareness ratio of perpendicular hysteresis loops (SQR (⊥)), were changed by NiWP underlayers. The reproduced output voltage of CoNiReP/NiWP flexible disks at low recording density with a ring-type head increased with Ms values of recording layer and underlayer. Moreover, the D50 value of 112 kFRPI was attained by the highest SQR(⊥) medium of the double layer evaluated with a 0.20μm gap length sendust ring-type head. This may be mainly due to large perpendicular anisotropy of the top region of recording layer which is improved by the underlayer addition.

本文言語English
ページ(範囲)276-281
ページ数6
ジャーナルIEEE Translation Journal on Magnetics in Japan
5
3
DOI
出版ステータスPublished - 1990 3月

ASJC Scopus subject areas

  • 工学(その他)
  • 工学一般

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