Ferrielectric smectic phases: Liquid crystal structure and macroscopic fluctuations
Ferrielectric smectic phases: Liquid crystal structure and macroscopic fluctuations
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DOI：
10.1080/02678299608032034
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发表时间：
1996-03
期刊：
影响因子：
2.2
通讯作者：
V. Lorman
中科院分区：
文献类型：
--
作者：
V. Lorman
摘要本文研究了具有复杂倾斜和偶极序的多层近晶相的结构和性质。给出了多层反铁电相和铁电相的对称性和热力学分类。主要注意的是这些相相对于经典铁电S * c的差异。推广了铁电同晶相的两层模型，描述了铁-铁-反铁-电一级相变的顺序，并证明了存在两种不同螺距值和螺旋意义的等结构铁电相的可能性。
Abstract The work concerns the structures and properties of multilayer smectic phases with complex tilt and dipolar order. The symmetry and thermodynamical classification of multilayer antiferroelectric and ferrielectric phases is given. The main attention is paid to the difference of these phases with respect to classical ferroelectric S∗c. A two-layer model of the ferrielectric smectic phase is generalized to describe the sequence of the first order phase transitions ferro-ferri-antiferro-electric and to show the possibility of existence of two isostructural ferrielectric phases, which differ in the value of the helical pitch and in the sense of the helix.