Structure and magnetic properties for L10-ordered FeNi films prepared by alternate monatomic layer deposition

T. Shima, M. Okamura, S. Mitani, K. Takanashi

研究成果: Article査読

86 被引用数 (Scopus)

抄録

Alternate monatomic layer (ML) deposition technique has been used to fabricate a metastable L10-ordered phase of FeNi alloys. The films were prepared by alternating Fe (0 0 1) and Ni (0 0 1) MLs on MgO (0 0 1) substrates at various temperatures TS in the range between 80 and 400 °C. It has been found that the degree of long-range order S evaluated by X-ray diffraction increases with TS, and it has a maximum at TS=240 °C. With further increase of TS, S shows a drastic decrease, and almost disappears at TS=280 °C. 280 °C is close to the order-disorder transformation temperature in the thermal equilibrium. The variation of Ku shows the same tendency as that of S, suggesting the formation of L10-ordered FeNi alloy in the range of TS=200-260 °C. Maximum values of S=0.6±0.2 and Ku=6.3×106 (erg/cm3) are obtained at TS=240 °C.

本文言語English
ページ(範囲)2213-2214
ページ数2
ジャーナルJournal of Magnetism and Magnetic Materials
310
2 SUPPL. PART 3
DOI
出版ステータスPublished - 2007 3月 1

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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