Influence of chirality on two-dimensional deformations in twisted flexoelectric nematic layers
PDF

Keywords

twisted nematic
flexoelectricity
chirality
periodic patterns

How to Cite

Buczkowska, M. (2019). Influence of chirality on two-dimensional deformations in twisted flexoelectric nematic layers. Scientific Bulletin. Physics, 40(1227), 5-12. https://doi.org/10.34658/physics.2019.40.5-12

Abstract

Two-dimensional deformations induced by electric field in twisted nematic cells filled with liquid crystal possessing flexoelectric properties were simulated numerically. The influence of chiral dopants on the occurrence and structure of the spatially periodic patterns was investigated. It was found that the chirality influences mainly the direction of the periodic patterns whereas the threshold voltage for deformation and the width of the stripes are weakly affected.

https://doi.org/10.34658/physics.2019.40.5-12
PDF

References

D.-K. Yang and S.-T. Wu, Fundamentals of liquid crystal devices (John Wiley&Sons Ltd., 2014).

Umanskil B.A., Chigrinov V.G., Blinov L.M., Podyachev Yu.B. 1981. Flexoelectric effect in twisted liquid-crystal structures. Sov. Phys. JETP 54: 694-699.

Buczkowska M., Derfel G. 2017. Spatially periodic deformations in planar and twisted flexoelectric nematic layers. Phys. Rev. E 95: 062705-1 - 062705-8.

Meyer R.B. 1969. Piezoelectric effects in liquid crystals. Phys Rev Lett. 22: 918-921.

Blinov L.M., Structure and Properties of Liquid Crystals (Springer, New York, 2010).

Derfel G., Buczkowska M. 2016. Two-dimensional deformations in twisted flexoelectric nematic cells. Sci. Bull. Techn. Univ. Lodz, Physics. 37: 21-30.

Harden J., Mbanga B., Eber N., Fodor-Csorba K., Sprunt S., Gleeson J.T., Jakli A. 2006. Giant flexoelectricity of bent-core nematic liquid crystals. Phys. Rev. Lett. 97: 157802.

Jákli A. 2013. Liquid crystals of the twenty-first century – nematic phase of bentcore molecules. Liq Cryst Rev. 1: 65-82.

Derfel G., Buczkowska M. 2015. Macroscopic model formulae describing anisotropic anchoring of nematic liquid crystals on solid substrates. Sci. Bull. Techn. Univ. Lodz, Physics. 36: 5-12.

Downloads

Download data is not yet available.