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Journal of Physical Studies 7(4), 387–392 (2003)
DOI: https://doi.org/10.30970/jps.07.387 THE INFLUENCE OF THE BOUNDARY CONDITIONS ON THE CRITICAL BEHAVIOUR OF A MULTI-COMPONENT LIQUID SYSTEMA. N. Vasil'ev
Taras Shevchenko National University of Kyiv, %Physics Faculty,
Department for Theoretical Physics, |
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In this paper a multi-component finite-size liquid system with geometry of a plane-parallel layer is considered. Critical phenomena in this system are studied taking into account the peculiarities of the mixture interaction with restricting surfaces. Using special assumptions, namely, about short-range direct interaction within the mixture, expressions for pair correlation functions of density fluctuations are found for this system and shifts of critical parameters and indices in comparison with the infinite system are obtained. It is shown that boundary conditions influence these shifts significantly. Some conclusions are made about the applicability of the results in the experiment.
PACS number(s): 05.70.Fh, 05.70.Jk, 64.60.Fr, 68.35.Rh