Mean-field critical behaviour of susceptibility near a curve of plait points in a ternary liquid mixture

被引:13
作者
Ali, BMJ [1 ]
Kumar, A [1 ]
机构
[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India
关键词
D O I
10.1016/S0375-9601(97)00877-3
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on light scattering investigations in the vicinity of plait points in a ternary liquid mixture of ethanol + water + sodium carbonate. The plait points that were explored occur in the temperature range of 300 to 378 K. The coordinates of these points were extracted from the coexistence surface of the ternary liquid system. The approach to each of these plait points is quantified better by mean-field (or classical) critical behaviour (exponent gamma = 1) than by 3-D Ising behaviour (gamma = 1.24). The role of electrolytes in modifying the anticipated 3-D Ising behaviour in this system is highlighted. (C) 1998 Published by Elsevier Science B.V.
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页码:257 / 263
页数:7
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