MAGNETIC-PROPERTIES OF THIN-FILM WITH S=1 - ISOTHERMAL SUSCEPTIBILITYAND MAGNETIC SPECIFIC-HEAT

The thermodynamic response functions were studied in thin films in the frame of the Blume-Emergy-Griffiths model. The method is based on the analysis of tile Gibbs free energy and involves calculations of the m agnetization and quadrupolar moment distributions. Tile temperature de pendencies of the susceptibility and specific heat are obtained for va rious biquadratic interaction parameter and non-zero single-ion anisot ropy. The behaviour of these functions in different phases: ferromagne tic, paramagnetic and staggered quadrupolar are illustrated in figures and discussed.