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Solid-phase synthesis of Co7Sm2(110) epitaxial nanofilms: Structural and magnetic properties

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Abstract

The solid-phase synthesis of the Co7Sm2 and Co17Sm2 magnetically hard phases in Co/Sm/Co(110) epitaxial film systems has been experimentally investigated. The Co7Sm2 phase is first formed at the Sm/Co interface at a relatively low (∼300°C) temperature. As the annealing temperature increases to ∼450°C, the Co17Sm2(110) phase grows epitaxially on the Co7Sm2(110) phase. The saturation magnetization and biaxial anisotropy constant in the samples vary with the formation of the Co7Sm2 and Co17Sm2 phases. Investigations of the solid-phase synthesis in the nanofilms reveal the existence of a new structure phase transition at 300°C in the Co-Sm system with a high cobalt content.

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Authors and Affiliations

  1. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia

    V. S. Zhigalov, V. G. Myagkov & L. E. Bykova

  2. Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia

    L. A. Solov’ev & G. N. Bondarenko

Authors
  1. V. S. Zhigalov
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  2. V. G. Myagkov
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  3. L. A. Solov’ev
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  4. G. N. Bondarenko
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  5. L. E. Bykova
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Correspondence to V. S. Zhigalov.

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Original Russian Text © V.S. Zhigalov, V.G. Myagkov, L.A. Solov’ev, G.N. Bondarenko, L.E. Bykova, 2008, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2008, Vol. 88, No. 6, pp. 445–449.

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Zhigalov, V.S., Myagkov, V.G., Solov’ev, L.A. et al. Solid-phase synthesis of Co7Sm2(110) epitaxial nanofilms: Structural and magnetic properties. Jetp Lett. 88, 389–393 (2008). https://doi.org/10.1134/S0021364008180100

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  • DOI: https://doi.org/10.1134/S0021364008180100

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