Dielectric and electro-optic behaviour of two chiral compounds and their antiferroelectric mixtures

Czerwiec, J.M.; Dąbrowski, R.; Garbat, K.; Marzec, M.; Tykarska, Marzena; Wawrzyniak, Adriana; Wróbel, S.

doi:10.1080/02678292.2012.725868

Cited by 20 publications

(2 citation statements)

References 30 publications

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“…For FLC compounds with a high degree of Ps, another type of collective dielectric process, known as the domain mode (DM), is a result of Ps under certain conditions. In addition, a new domain structure with different periodicity in the bulk and at the surface has been proposed [9,11,14,15]. Moreover, at certain temperatures, the FLCs exhibit two molecular processes in a high-frequency region (1 MHz and greater).…”

Section: Introductionmentioning

confidence: 98%

Spontaneous polarization and dielectric relaxation dynamics of ferroelectric liquid crystals derived from 2(S)-[2(S)-ethylhexyolxy] propionic acid and its (S, R)-diastereomer

Huang

2015

Physica B: Condensed Matter

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Section: Introductionmentioning

confidence: 98%

Spontaneous polarization and dielectric relaxation dynamics of ferroelectric liquid crystals derived from 2(S)-[2(S)-ethylhexyolxy] propionic acid and its (S, R)-diastereomer

Huang

2015

Physica B: Condensed Matter

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“…Moreover, for FLC compounds with a high degree of Ps, the domain mode (DM) exists. Additionally, several studies have proposed a new domain structure [9,11,14,15]. Furthermore, at certain temperatures, the FLCs exhibit the L-mode and the S-mode [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Spontaneous Polarization and Dielectric Relaxation Dynamics of Two Novel Diastereomeric Ferroelectric Liquid Crystals

Huang

2016

Acta Phys. Pol. A

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This study reports on the spontaneous polarization and molecular dynamics of two diastereomeric ferroelectric liquid crystals with a phenyl core ring but with different types of diastereomeric structures. The magnitudes of spontaneous polarization, measured via an Automated LC Property Tester, were similar for the two ferroelectric liquid crystals. The complex dielectric spectra, measured via an impedance analyzer, indicated the existence of the Goldstone mode in the ferroelectric (SmC * ) phase for the two ferroelectric liquid crystals. Moreover, a novel ferrielectric-like (SmCγ * -like) phase was observed at certain temperatures. The complex dielectric spectra of the two ferroelectric liquid crystals were optimally analyzed by a theoretical model composed of the Debye model and the Cole-Cole model. The physical parameters such as relaxation frequency and dielectric strength were determined by a dielectric relaxation study, and the obtained parameters varied in accordance with phase transition sequence. The experimental results of dielectric spectra and spontaneous polarization are explained in the discussion of the mesomorphic properties related to the ferroelectric liquid crystal molecular structure.

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Effect of lateral fluorination in antiferroelectric and ferroelectric mesophases: synchrotron X-ray diffraction, dielectric spectroscopy and electro-optic study

Dey¹,

Mandal

Dąbrowski

2016

Journal of Physics and Chemistry of Solids

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Dielectric and electro-optic behaviour of two chiral compounds and their antiferroelectric mixtures

Cited by 20 publications

References 30 publications

Spontaneous polarization and dielectric relaxation dynamics of ferroelectric liquid crystals derived from 2(S)-[2(S)-ethylhexyolxy] propionic acid and its (S, R)-diastereomer

Spontaneous polarization and dielectric relaxation dynamics of ferroelectric liquid crystals derived from 2(S)-[2(S)-ethylhexyolxy] propionic acid and its (S, R)-diastereomer

Spontaneous Polarization and Dielectric Relaxation Dynamics of Two Novel Diastereomeric Ferroelectric Liquid Crystals

Effect of lateral fluorination in antiferroelectric and ferroelectric mesophases: synchrotron X-ray diffraction, dielectric spectroscopy and electro-optic study

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