Molecular origin of the heterogeneity in the nematic and smectic liquid crystals: Elastic constants, gradients of order parameters, and visualization of small objects

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
A. V. Emelyanenko ◽  
E. S. Filimonova ◽  
A. R. Khokhlov
Keyword(s):  
Liquid Crystals ◽  
Elastic Constants ◽  
Order Parameters ◽  
Smectic Liquid Crystals ◽  
Molecular Origin

scholarly journals Flexoelectric effect modelling

2008 ◽  
Vol 16 (4) ◽  
Author(s):  
A. Kapanowski
Keyword(s):  
Statistical Theory ◽  
Dipole Moment ◽  
Liquid Crystals ◽  
Temperature Dependence ◽  
Elastic Constants ◽  
Symmetry Axis ◽  
Order Parameters ◽  
Flexoelectric Effect ◽  
Calculate Temperature Dependence ◽  
Component Parallel

AbstractA statistical theory of dipole flexoelectric (FE) polarization in liquid crystals is used to calculate temperature dependence of order parameters, elastic constants and FE coefficients. Two systems with polar wedge-shaped and banana-shaped molecules are investigated. In both cases, the FE coefficients are proportional to the dipole moment component parallel to the molecule symmetry axis. It results from the symmetries of interactions and of the Mayer function. The origin of the FE effect and microscopic pictures of the distorted phases are discussed.

Specific selective reflections in the ferrielectric phases of chiral smectic liquid crystals

2000 ◽  
Vol 247 (1) ◽  
pp. 307-320
Author(s):  
Maxim Gorkunov ◽  
Sergei Pikin ◽  
Wolfgang Haase
Keyword(s):  
Liquid Crystals ◽  
Smectic Liquid Crystals
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