Dependence of recorded bit-patterns on saturation magnetization in microwave assisted magnetic recording

Terumitsu Tanaka, Ayumu Kato, Satoshi Kawano, Naoyuki Narita, Yukio Nozaki, Yasushi Kanai, Kimihide Matsuyama

研究成果: Contribution to journalArticle査読

抄録

Signal recording processes were simulated using micromagnetic calculation for microwave assisted magnetic recording in perpendicular magnetic media. Strong magnetostatic field caused by the large saturation magnetization of the media tends to deteriorate recorded bit patterns resulting in low signal to noise ratio for the play back signal. The moderate exchange interaction fields were shown to improve recording characteristics and increase signal to noise ratio even for the large saturation magnetization media. The influence of thermal fluctuation fields on recording characteristics was also discussed and the influence was negligible for the media assumed in this study.

本文言語英語
ジャーナルIEEJ Transactions on Fundamentals and Materials
130
7
DOI
出版ステータス出版済み - 2010

All Science Journal Classification (ASJC) codes

  • 電子工学および電気工学

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