DOI: https://doi.org/10.30970/jps.02.459
CRITICAL PHENOMENA IN FINITE-SIZE SYSTEM WITH GAUSSIAN DIRECT CORRELATION FUNCTION. 1. PAIR CORRELATION FUNCTION AND SHIFT OF CRITICAL TEMPERATURE
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Journal of Physical Studies 2(4), 459–462 (1998)
DOI: https://doi.org/10.30970/jps.02.459 CRITICAL PHENOMENA IN FINITE-SIZE SYSTEM WITH GAUSSIAN DIRECT CORRELATION FUNCTION. 1. PAIR CORRELATION FUNCTION AND SHIFT OF CRITICAL TEMPERATURE |
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L. V. Rybina1, A. V. Chaly2
1Chair of Molecular Physics, Taras Shevchenko Kyiv National University,
6 Academician Hlushkov Av., Kyiv, UA–252127, Ukraine
2Chair of Biophysics, Ukrainian National Medical University,
13 Shevchenko Bul., Kyiv, UA–252004, Ukraine
The subject of the present paper is investigation of the peculiarities of critical phenomena in finite–size cylindrical liquid systems on the base of the Ornstein–Zernike equation. A direct correlation function was considered in an approximation of the Gaussian type. The relationship between parameters included in direct correlation function and thermodynamic characteristics of the medium were found. Pair correlation function describing correlation features of a system at short distances and shift of critical temperature were defined.