Nonlinear Electrooptical Relaxation Spectra of Ferroelectric and Antiferroelectric Liquid Crystals

Yasuyuki Kimura, Reinosuke Hayakawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have studied the nonlinear electrooptical relaxation spectra of the Goldstone mode in the ferroelectric SmC* phase and antiferroelectric SmCA*phase of an antiferroelectric liquid crystal (AFLC). In the SmC* phase, the experimentally obtained linear spectrum shows a single relaxation of Debye type and the second and third-order nonlinear spectra show extended forms of Debye type to nonlinear case. In the SmCA*phase, the linear spectrum shows no relaxation under 20kHz, but the second-order nonlinear spectrum shows a Debye type single relaxation corresponding to the antiferroelectric Goldstone mode. We have also studied the electrooptical response in these two phases by means of the torque balance equation describing the dynamics of the Goldstone mode. The calculated nonlinear spectra are found to be in a good agreement with experimentally obtained ones.

Original languageEnglish
Pages (from-to)83-92
Number of pages10
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume328
DOIs
Publication statusPublished - Jan 1 1999

Fingerprint

Liquid Crystals
Liquid crystals
Ferroelectric materials
Torque
liquid crystals
torque

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

@article{9ae4c326aa8a46b996a43172c008cc87,
title = "Nonlinear Electrooptical Relaxation Spectra of Ferroelectric and Antiferroelectric Liquid Crystals",
abstract = "We have studied the nonlinear electrooptical relaxation spectra of the Goldstone mode in the ferroelectric SmC* phase and antiferroelectric SmCA*phase of an antiferroelectric liquid crystal (AFLC). In the SmC* phase, the experimentally obtained linear spectrum shows a single relaxation of Debye type and the second and third-order nonlinear spectra show extended forms of Debye type to nonlinear case. In the SmCA*phase, the linear spectrum shows no relaxation under 20kHz, but the second-order nonlinear spectrum shows a Debye type single relaxation corresponding to the antiferroelectric Goldstone mode. We have also studied the electrooptical response in these two phases by means of the torque balance equation describing the dynamics of the Goldstone mode. The calculated nonlinear spectra are found to be in a good agreement with experimentally obtained ones.",
author = "Yasuyuki Kimura and Reinosuke Hayakawa",
year = "1999",
month = "1",
day = "1",
doi = "10.1080/10587259908026048",
language = "English",
volume = "328",
pages = "83--92",
journal = "Molecular Crystals and Liquid Crystals",
issn = "1542-1406",
publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - Nonlinear Electrooptical Relaxation Spectra of Ferroelectric and Antiferroelectric Liquid Crystals

AU - Kimura, Yasuyuki

AU - Hayakawa, Reinosuke

PY - 1999/1/1

Y1 - 1999/1/1

N2 - We have studied the nonlinear electrooptical relaxation spectra of the Goldstone mode in the ferroelectric SmC* phase and antiferroelectric SmCA*phase of an antiferroelectric liquid crystal (AFLC). In the SmC* phase, the experimentally obtained linear spectrum shows a single relaxation of Debye type and the second and third-order nonlinear spectra show extended forms of Debye type to nonlinear case. In the SmCA*phase, the linear spectrum shows no relaxation under 20kHz, but the second-order nonlinear spectrum shows a Debye type single relaxation corresponding to the antiferroelectric Goldstone mode. We have also studied the electrooptical response in these two phases by means of the torque balance equation describing the dynamics of the Goldstone mode. The calculated nonlinear spectra are found to be in a good agreement with experimentally obtained ones.

AB - We have studied the nonlinear electrooptical relaxation spectra of the Goldstone mode in the ferroelectric SmC* phase and antiferroelectric SmCA*phase of an antiferroelectric liquid crystal (AFLC). In the SmC* phase, the experimentally obtained linear spectrum shows a single relaxation of Debye type and the second and third-order nonlinear spectra show extended forms of Debye type to nonlinear case. In the SmCA*phase, the linear spectrum shows no relaxation under 20kHz, but the second-order nonlinear spectrum shows a Debye type single relaxation corresponding to the antiferroelectric Goldstone mode. We have also studied the electrooptical response in these two phases by means of the torque balance equation describing the dynamics of the Goldstone mode. The calculated nonlinear spectra are found to be in a good agreement with experimentally obtained ones.

UR - http://www.scopus.com/inward/record.url?scp=0043229395&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0043229395&partnerID=8YFLogxK

U2 - 10.1080/10587259908026048

DO - 10.1080/10587259908026048

M3 - Article

AN - SCOPUS:0043229395

VL - 328

SP - 83

EP - 92

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -