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Institute of Electrical and Electronics Engineers, IEEE Transactions on Magnetics, 4(40), p. 2522-2524, 2004

DOI: 10.1109/tmag.2004.832108

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Optimum Compositions for the Low-Temperature Fabrication of Highly Ordered FePt

Journal article published in 2004 by T. Seki, T. Shima, K. Takanashi, Y. Takahashi ORCID, E. Matsubara, K. Hono
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This paper is available in a repository.

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Abstract

The composition dependence of the degree of chemical order S and uniaxial magnetic anisotropy energy Ku has been investigated for FePt [001] and FePt [110] films deposited at the substrate temperature Ts=300°C, and the optimum compositional region for L10 ordering in FePt [110] films has been compared with that in FePt [001] films. It has been found that high S and large Ku are obtained around the stoichiometric composition for FePt [110] films, whereas they are obtained around an off-stoichiometric Pt-rich composition for FePt [001] films, indicating that the difference in optimum compositions for achieving highly ordered structure between FePt [001] and FePt [110] films at reduced temperature.