科研之友
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摘要
A two-particle cluster theory is presented to study uniaxial nematic liquid crystals formed by biaxial molecules, which interact with each other via dispersion forces. The equation for the molecular orientational distribution functions in two-particle cluster approximation is obtained and is solved by an iterative method. The temperature dependences of the order parameter and of the internal energy per particle are calculated, and the values of the relevant quantities at the nematic-isotropic phase transition are given. The present theory, by taking into account the short range correlations between molecules, yields improved results compared with the mean field theory.
- 出版日期1997-9
- 单位河北工业大学
