Fluid mixtures of parallel hard cubes

被引:77
作者
Cuesta, JA
机构
[1] Departamento de Matemáticas, Escuela Politécnica Superior, Universidad Carlos III de Madrid, Madrid, c/Butarque, 15
关键词
D O I
10.1103/PhysRevLett.76.3742
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The direct correlation function of a fluid mixture of parallel hard cubes is obtained by using Rosenfeld's fundamental measure approximation. This approximation is thermodynamically consistent (compressibility and virial equations of state are equal) and predicts a spinodal instability of the binary mixture for large-to-small side ratio larger than roughly 10, in qualitative agreement with simulations on the lattice version of the model. In two dimensions the system never demixes, also in agreement with the simulations.
引用
收藏
页码:3742 / 3745
页数:4
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