Magnetic properties and microstructure of the granular films processed by annealing FePt-based multilayers

T. O. Seki*, Y. K. Takahashi, K. Hono

*この研究の対応する著者

研究成果: Article査読

4 被引用数 (Scopus)

抄録

To explore the possibility of FePt-based soft/hard nanocomposite magnets, granular films were prepared by annealing Pt/Fe, FePt/Fe, and FePt/Fe 3Pt multilayers. Although a high coercivity of 12 kOe was obtained by annealing the Fe3Pt/FePt multilayers, only a small remanence was obtained due to random orientation of L10 FePt grains. By introducing oxygen during the film deposition, a few nanometer oxide particles were observed within the FePt grains and Hc increased at the expense of Mr. A possible way to achieve a higher value of (BH)max is discussed based on the relationship between the microstructure and magnetic properties.

本文言語English
ページ(範囲)3799-3801
ページ数3
ジャーナルIEEE Transactions on Magnetics
41
10
DOI
出版ステータスPublished - 2005 10
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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