Fabrication of SmCo5 double-layered perpendicular magnetic recording media

Tetsuya Osaka*, Yuki Yamashita, Junichi Sayama, Toru Asahi, Jun Ariake, Kiko Harada, Kazuhiro Ouchi

*この研究の対応する著者

研究成果査読

8 被引用数 (Scopus)

抄録

We fabricated SmCo5 double-layered perpendicular magnetic recording media with high perpendicular magnetic anisotropy for realizing ultra high density recording. A double-layered medium with a Ru buffer layer introduced between a Cu/Ti intermediate layer and a Co-Zr-Nb soft magnetic underlayer exhibited high perpendicular magnetic anisotropy, whereas that without the Ru buffer layer did not. Auger electron spectroscopy revealed that the Ru buffer layer inhibited interdiffusion between the Cu/Ti intermediate layer and the Co-Zr-Nb soft magnetic underlayer. We report here for the first time the read-write characteristics of SmCo5 double-layered perpendicular magnetic recording media. The medium noise was small in the medium with a Sm-Co layer deposited under high Ar gas pressure owing to small magnetic clusters.

本文言語English
ページ(範囲)2109-2111
ページ数3
ジャーナルIEEE Transactions on Magnetics
43
6
DOI
出版ステータスPublished - 2007 6

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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