Analytical Expressions for Shielded MR Head Response(Special Issue on Selected Papers from the 5th Asian Symposium on Information Storage Technology)

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概要

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• Recording mechanism of perpendicular recording was examined using analytical expression of shielded AMR/GMR head response. Pulse shape, roll-off performance, and noise spectra were reasonably explained by the calculated head transfer functions. Comparison with the calculation based on the formulae showed several fundamental characteristics of perpendicular recording: no large media noise at low frequencies in magnetic sense, but simply due to a reflection of a head transfer function: no severe resolution degradation: negligible noise power directly arisen from soft magnetic underlayer. This method will provide a convenient design tool for perpendicular magnetic recording.

• 社団法人電子情報通信学会の論文
• 2001-09-01

著者

• MURAOKA Hiroaki

  RIEC, Tohoku University

• NAKAMURA Yoshihisa

  RIEC, Tohoku University

• Muraoka Hiroaki

  Riec Tohoku University

• Nakamura Yoshihisa

  Riec Tohoku University

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