Magnetic Properties of Thin Film with S=1. Isothermal Susceptibility and Magnetic Specific Heat |
| M. Gzik and T. Balcerzak Solid State Physics Department, University of Łódź, Pomorska 149/153, 90-236 Łódź, Poland |
| Received: January 31, 1997; revised version: April 21, 1997 |
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| The thermodynamic response functions were studied in thin films in the frame of the Blume-Emery-Griffiths model. The method is based on the analysis of the Gibbs free energy and involves calculations of the magnetization and quadrupolar moment distributions. The temperature dependencies of the susceptibility and specific heat are obtained for various biquadratic interaction parameter and non-zero single-ion anisotropy. The behaviour of these functions in different phases: ferromagnetic, paramagnetic and staggered quadrupolar are illustrated in figures and discussed. |
| DOI: 10.12693/APhysPolA.92.543 PACS numbers: 64.60.-i, 75.10.-b, 75.70.-i |