Microstructure and magnetic properties of FePt thin films epitaxially grown on MgO (0 0 1) substrates

Y. K. Takahashi*, K. Hono, T. Shima, K. Takanashi

*この研究の対応する著者

研究成果: Article査読

76 被引用数 (Scopus)

抄録

We have investigated the microstructures and the magnetic properties of 10nm thick FePt films epitaxially grown on MgO (0 0 1) substrates at various substrate temperatures, Ts. The long-range-order parameter of the L10 structure and the coercivity increased above Ts = 450°C with a drastic change in the film morphology from continuous structure to island-like one. A huge coercivity of 42kOe obtained at T s = 700°C is attributed to complete magnetic isolation of nanometer-scale particles as well as perfect uniaxial alignment of c-axis in the normal direction to the film.

本文言語English
ページ(範囲)248-255
ページ数8
ジャーナルJournal of Magnetism and Magnetic Materials
267
2
DOI
出版ステータスPublished - 2003 12
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
  • 凝縮系物理学

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