Composite Media for Heat Assisted Magnetic Recording

Simon John Greaves*, Yoshiaki Sonobe, Hiroaki Muraoka

*この研究の対応する著者

研究成果: Article査読

抄録

Composite media grains consisting of two discrete magnetic layers with different uniaxial anisotropies, Ku, and Curie temperatures, Tc , were investigated for heat assisted magnetic recording. The maximum switching probability of optimized composite grains exceeded that of single phase grains. As Ku of one layer increased the optimum Ku of the other layer became smaller, tending toward zero in many cases. Leading and trailing edge recording were also compared. Trailing edge recording was superior when the maximum temperature in the grain, Tmax , was similar to Tc , but when Tmax exceeded Tc leading edge recording performed better.

本文言語English
論文番号7907259
ジャーナルIEEE Transactions on Magnetics
53
11
DOI
出版ステータスPublished - 2017 11月
外部発表はい

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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