Crystal structure, magnetic and optical properties of thin films, synthesized on base of SmCo5 and Nd2Fe14B powders

  • 1 Laboratory of Phys. of Magnetic Materials – Scientific-Practical Materials Research Centre NAS, Minsk, Belarus


Thin Sm-Co and Nd-Fe-B layers with a thickness of ~ 30 – 850 nm were synthesized by thermal evaporation method using permanent magnets SmCo5 and Nd2Fe14B powders as precursors on glass substrates. The crystal structure was studied by X-ray diffraction in CuKa – radiation at room temperatures. It was shown that thin films are characterized by a highly amorphized crystalline state. It was found that annealing of the films leads to the destruction of the compositions on the glass substrate. In the temperature range of 80 – 1100 K using the ponderomotive method the specific magnetization in the “heating – cooling” mode was measured. Magnetic hysteresis loops were studied in the temperature range of 5 – 300 K. In the wavelength range of 250 – 3000 nm, optical transmission spectra of transparent Sm-Co and Nd-Fe-B films with a thickness of ~ 30 nm were studied.



  1. H. Okamoto. Comment on Co-Sm (cobalt-samarium) // Journal of Phase Equilibria. — 1995. — V. 16, № 4. — p. 367-368.
  2. J. F. Herbst, W. B. Yelon. Relationships between crystal structure and magnetic properties in Nd2Fe14B // References Physical Review B. – 1984. — V. 29, N 7. — p. 3.
  3. Galyas A.I., Tkachenko T.M. Partial powder supply device in a vacuum film spraying apparatus using the flash method: Patent RB No. 2901 (2006), priority dated November 23, 2005, No. 0737.
  4. K.I. Yanushkevich, Methods of specific magnetization and magnetic susceptibility measurement, assurance system of measurement uniformity of the Republic of Belarus, in: MVI. MN 3128-2009, BelSIM Minsk, 2009, pp. 19.

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