DOI: https://doi.org/10.30970/jps.02.269
CALCULATION OF THE SURFACE ENERGY OF A FERROMAGNETIC FILM
|
Journal of Physical Studies 2(2), 269–273 (1998)
DOI: https://doi.org/10.30970/jps.02.269 CALCULATION OF THE SURFACE ENERGY OF A FERROMAGNETIC FILM |
|
D. V. Shopova
CPCM Laboratory, G. Nadjakov Institute of Solid State Physics
Bulgarian Academy of Sciences, BG 1784 Sofia, Bulgaria
A new approach to the calculation of the surface energy for a thin ferromagnetic film is proposed. The calculation is done in the mean–field approximation on the basis of the Ising model for temperatures below the bulk transition temperature. In the obtained results the discrete character of the system is preserved in a direction, perpendicular to the surface of the film. The surface energy coefficient is expressed explicitly by the exchange parameters of the system and its temperature dependence is analyzed.