DOI: https://doi.org/10.30970/jps.05.24
ANALYSIS OF PROPERTIES OF METALLIC CERIUM IN THE VICINITY OF THE CRITICAL POINT
E. D. Soldatova, M. G. Snegirev
Dnepropetrovsk National University, Physical Faculty
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Journal of Physical Studies 5(1), 24–30 (2001)
DOI: https://doi.org/10.30970/jps.05.24 ANALYSIS OF PROPERTIES OF METALLIC CERIUM IN THE VICINITY OF THE CRITICAL POINTE. D. Soldatova, M. G. Snegirev Dnepropetrovsk National University, Physical Faculty |
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The properties of metallic cerium in the critical point region are examined on the basis of two models – the Rainford-Edwards model and the Aptecar-Ponyatovsky model. The whole complex of stability characteristics is calculated for both the models, their behaviour in the critical region is analyzed. The analysis of the thermodynamical stability of the models leads to the necessity to take into account the energy of the lattice oscillations. It is shown that both the models correspond to the first type of the critical behaviour. Which characterized by a constant slope of the phase equilibrium line at the critical point and by the finite value of the stability coefficient $T/C_V$.
PACS number(s): 64.60.Fr.