Microwave-assisted magnetic recording simulation on exchange-coupled composite medium

T. Tanaka, A. Kato, Y. Furomoto, A. F. Md Nor, Y. Kanai, K. Matsuyama

研究成果: Contribution to journalArticle査読

12 被引用数 (Scopus)

抄録

The potential of microwave-assisted magnetic recording on exchange-coupled composite (ECC) media is investigated by numerically simulating readwrite processes with respect to the physical and magnetic properties of the soft section of ECC media. To obtain desirable recording performance, the thickness of the soft section must be comparable to the exchange length. Under such condition, the optimal microwave frequency decreases owing to the non-uniformity of the reversal mode. A relatively high anisotropy field in the soft section produces high signal-to-noise ratios. Moreover, large saturation magnetization of the soft section enhances the magnetization reversal of ECC grains but excessive enhancement is likely to induce wide writing, which decreases the high track density.

本文言語英語
論文番号07B711
ジャーナルJournal of Applied Physics
111
7
DOI
出版ステータス出版済み - 4 1 2012

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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