Molecular model for de Vries type smectic- A -smectic- C phase transition in liquid crystals.
Molecular model for de Vries type smectic- A -smectic- C phase transition in liquid crystals.
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DOI：
10.1103/physreve.75.060701
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发表时间：
2007-01
期刊：
影响因子：
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通讯作者：
M. Gorkunov;F. Giesselmann;J. Lagerwall;T. Sluckin;M. Osipov
中科院分区：
文献类型：
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作者：
M. Gorkunov;F. Giesselmann;J. Lagerwall;T. Sluckin;M. Osipov
我们发展了近晶层收缩异常微弱的近晶-A-近晶-C相变的唯象理论和分子统计理论。利用一般平均场分子模型，我们证明了一个相对简单的相互作用势足以描述传统和De Vries类近晶态的跃迁。理论计算结果与实验数据吻合较好。该方法也可以用来描述其他软物质系统的倾斜跃迁。
We develop both phenomenological and molecular-statistical theory of smectic- A -smectic- C phase transition with anomalously weak smectic layer contraction. Using a general mean-field molecular model, we demonstrate that a relatively simple interaction potential suffices to describe the transition both in conventional and de Vries type smectics. The theoretical results are in excellent agreement with experimental data. The approach can be used to describe tilting transitions in other soft matter systems.