Ultra-high-density magnetic information storage technologies

Keishi Ohashi, Nobuyuki Ishiwata, Masahiro Yanagisawa, Akinobu Sato, Shinzo Tsuboi, Hirotaka Hokkyo

研究成果査読

抄録

Three approaches used to achieve ultra-high-density recording of 100 Gbit/in2 are discussed. In order to overcome the thermal fluctuation problem of recorded patterns, a write head with Co-Ni-Fe poles has been developed. The Co-Ni-Fe pole generates the strongest write field. The head wrote well in media with a coercivity of 7 kOe, which is sufficiently large for ultra-high-density recording. A narrow gap Co-Ni-Fe head for perpendicular recording has also been developed. The experimental results on contact recording and a double-layer perpendicular medium are also discussed.

本文言語English
ページ(範囲)160-165
ページ数6
ジャーナルNEC Research and Development
41
2
出版ステータスPublished - 2000 4 1
外部発表はい

ASJC Scopus subject areas

  • 電子工学および電気工学

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