极性非单轴分子液晶的介电极化率理论
Theory of the dielectric susceptibility of liquid crystals with polar nonuniaxial molecules
摘要：
本文提出了极性液晶介电常数的统计理论。分子不是单轴的，而是类似于锥体。假定分子的永久偶极矩平行于旋转对称轴。利用基于Maier-Saupe方法的平均场论描述了相位的有序性。利用该理论计算了序参量和双折射率随温度的变化关系。不同的参数集的模型的预测进行了研究。
英文摘要：
Statistical theory of the dielectric susceptibility of polar liquid crystals is proposed. The molecules are not uniaxial but similar to cones. It is assumed that the permanent dipole moment of a molecule is parallel to the axis of the rotational symmetry. The ordering of the phase is described by means of the mean field theory based on the Maier-Saupe approach. The theory was used to calculate the temperature dependence of the order parameters and the susceptibilities. Predictions of the model for different sets of parameters are investigated.
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