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Magnetic and Morphological Properties of Electrodeposited Thick FePt Films on Metallic (Au, Ag, Cu) Underlayers

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Abstract

Electrodeposited thick films of FePt (with the nominal composition 50 % Fe/50 % Pt) on three metallic (Au, Ag, Au) underlayers were annealed at various temperatures. The magnetic and morphological properties of the resulting films were then monitored. The Au and Ag underlayers promoted the growth of the (bct) L10 FePt phase. The greater growth of this phase in the films deposited on the Ag underlayer led to the crystallographic texturing in the (001) direction. This was accompanied by a significant magnetic anisotropy and a negative shift of the remanent magnetization in the presence of an applied field. The coercivity of the Ag underlayer films increased to 18 kOe while the coercivity of the Au underlayer films decreased to ∼2 kOe when the annealing temperature was increased to 800 ∘C.

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Acknowledgements

The authors would like to thank Prof. Ding Jun and Dr. Yi Jiabao for their help and discussions in this work.

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Authors and Affiliations

  1. Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand

    S. Thongmee

  2. Department of Material Science, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand

    S. Thongmee & I. Ming Tang

  3. ThEP, Commission of Higher Education, 328 Si Ayuthaya Rd., Bangkok, 10400, Thailand

    S. Thongmee & I. Ming Tang

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  1. S. Thongmee
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Correspondence to S. Thongmee.

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Thongmee, S., Tang, I.M. Magnetic and Morphological Properties of Electrodeposited Thick FePt Films on Metallic (Au, Ag, Cu) Underlayers. J Supercond Nov Magn 26, 3263–3269 (2013). https://doi.org/10.1007/s10948-013-2137-0

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  • DOI: https://doi.org/10.1007/s10948-013-2137-0

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