Buffer-Layer Dependence of Interface Magnetic Anisotropy in Co2Fe0.4Mn0.6Si Heusler Alloy Ultrathin Films

Mingling Sun*, Takahide Kubota, Yoshiaki Kawato, Shigeki Takahashi, Arata Tsukamoto, Yoshiaki Sonobe, Koki Takanashi

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Buffer-layer dependences of dead-layer thickness, saturation magnetization (Ms), and interface magnetic anisotropy (Ks) were systematically investigated for Co2Fe0.4Mn0.6Si (CFMS) Heusler alloy ultrathin films with Pd, Ru, and Cr buffer layers. Perpendicular magnetization was only achieved in 0.6 and 0.8 nm-thick CFMS ultrathin films deposited on Pd buffer layer and annealed at 400 °C. At the optimum annealing temperature of 400 °C, KS of 1.2 erg/cm2 was obtained for the Pd buffer layer, which was 3-6 times larger than those for Ru and Cr buffer layers. The difference in KS probably originates from the interdiffusion and different crystallized compounds at the interface between Pd (Ru, Cr) and CFMS layers.

本文言語English
論文番号7983443
ジャーナルIEEE Transactions on Magnetics
53
11
DOI
出版ステータスPublished - 2017 11月
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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