Microscopic origin of ferroelectricity in chiral smectic c* liquid crystals and ordering of 'ferroelectric fishes' proposed by de gennes

M.A. Osipov, M.V. Gorkunov

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The qualitative microscopic mechanism of ferroelectric ordering in smectic C* liquid crystals originally proposed by de Gennes and others is analysed in detail using the molecular-statistical approach. The general expression is obtained for the spontaneous polarisation of the smectic C* phase composed of chiral and polar molecules of the C2 symmetry. The polarisation is shown to be determined by molecular chirality, molecular transverse dipole and the non-polar biaxial order parameter which does not vanish in the non-chiral smectic C phase. A particular molecular model is considered in which molecular chirality and molecular biaxiality are determined by the pair of off-centre transverse molecular dipoles. In the context of this model the spontaneous polarisation is evaluated both analytically and numerically.
LanguageEnglish
Pages1281-1288
Number of pages7
JournalLiquid Crystals
Volume36
Issue number10-11
DOIs
Publication statusPublished - 2009

Fingerprint

Ferroelectricity
Liquid Crystals
ferroelectricity
fishes
Liquid crystals
Fish
Ferroelectric materials
Chirality
liquid crystals
Polarization
chirality
polarization
dipoles
Molecules
symmetry
molecules

Keywords

  • ferroelectric liquid crystals
  • chirality
  • intermolecular interactions

Cite this

@article{a3234cf22fa2475bae4a88864672b90a,
title = "Microscopic origin of ferroelectricity in chiral smectic c* liquid crystals and ordering of 'ferroelectric fishes' proposed by de gennes",
abstract = "The qualitative microscopic mechanism of ferroelectric ordering in smectic C* liquid crystals originally proposed by de Gennes and others is analysed in detail using the molecular-statistical approach. The general expression is obtained for the spontaneous polarisation of the smectic C* phase composed of chiral and polar molecules of the C2 symmetry. The polarisation is shown to be determined by molecular chirality, molecular transverse dipole and the non-polar biaxial order parameter which does not vanish in the non-chiral smectic C phase. A particular molecular model is considered in which molecular chirality and molecular biaxiality are determined by the pair of off-centre transverse molecular dipoles. In the context of this model the spontaneous polarisation is evaluated both analytically and numerically.",
keywords = "ferroelectric liquid crystals, chirality, intermolecular interactions",
author = "M.A. Osipov and M.V. Gorkunov",
year = "2009",
doi = "10.1080/02678290903101750",
language = "English",
volume = "36",
pages = "1281--1288",
journal = "Liquid Crystals",
issn = "0267-8292",
number = "10-11",

}

Microscopic origin of ferroelectricity in chiral smectic c* liquid crystals and ordering of 'ferroelectric fishes' proposed by de gennes. / Osipov, M.A.; Gorkunov, M.V.

In: Liquid Crystals, Vol. 36, No. 10-11, 2009, p. 1281-1288.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Microscopic origin of ferroelectricity in chiral smectic c* liquid crystals and ordering of 'ferroelectric fishes' proposed by de gennes

AU - Osipov, M.A.

AU - Gorkunov, M.V.

PY - 2009

Y1 - 2009

N2 - The qualitative microscopic mechanism of ferroelectric ordering in smectic C* liquid crystals originally proposed by de Gennes and others is analysed in detail using the molecular-statistical approach. The general expression is obtained for the spontaneous polarisation of the smectic C* phase composed of chiral and polar molecules of the C2 symmetry. The polarisation is shown to be determined by molecular chirality, molecular transverse dipole and the non-polar biaxial order parameter which does not vanish in the non-chiral smectic C phase. A particular molecular model is considered in which molecular chirality and molecular biaxiality are determined by the pair of off-centre transverse molecular dipoles. In the context of this model the spontaneous polarisation is evaluated both analytically and numerically.

AB - The qualitative microscopic mechanism of ferroelectric ordering in smectic C* liquid crystals originally proposed by de Gennes and others is analysed in detail using the molecular-statistical approach. The general expression is obtained for the spontaneous polarisation of the smectic C* phase composed of chiral and polar molecules of the C2 symmetry. The polarisation is shown to be determined by molecular chirality, molecular transverse dipole and the non-polar biaxial order parameter which does not vanish in the non-chiral smectic C phase. A particular molecular model is considered in which molecular chirality and molecular biaxiality are determined by the pair of off-centre transverse molecular dipoles. In the context of this model the spontaneous polarisation is evaluated both analytically and numerically.

KW - ferroelectric liquid crystals

KW - chirality

KW - intermolecular interactions

UR - http://dx.doi.org/10.1080/02678290903101750

U2 - 10.1080/02678290903101750

DO - 10.1080/02678290903101750

M3 - Article

VL - 36

SP - 1281

EP - 1288

JO - Liquid Crystals

T2 - Liquid Crystals

JF - Liquid Crystals

SN - 0267-8292

IS - 10-11

ER -