Electro-optic and piezo-optic studies of an antiferro-ferri-ferro-electric system

W. K. Robinson, C. Carboni, H. F. Gleeson, M. Hird, P. Styring, A. Seed

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A detailed study of a novel material exhibiting antiferro-, ferri-, and ferroelectric phases has been undertaken. The tilt angle, spontaneous polarisation and the dynamics of the helical unwinding have been examined as a function of temperature and voltage in all the phases of interest. The material exhibits large tilt angles (approx.31°) and values of spontaneous polarisation (approx.100nCcm-2) in cases where the helix is totally unwound. The behaviour of tilt angle as a function of applied electric field is examined in the ferri- and antiferro-electric phases. A stepwise increase in tilt angle as a function of applied voltage in the ferri-electric phase is presented, as well as unusual behaviour in the antiferro-electric state. In addition, a preliminary investigation of the change in spontaneous polarisation as a function of pressure is presented. It is shown that the dependence of spontaneous polarisation in the ferroelectric phase is relatively weak.

Original languageEnglish
Pages (from-to)69-79
Number of pages11
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume263
Issue numberpt 4
Publication statusPublished - 1995

Fingerprint

Electrooptical effects
electro-optics
Optics
optics
Polarization
polarization
Ferroelectric materials
Electric potential
electric potential
helices
Electric fields
electric fields
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Electro-optic and piezo-optic studies of an antiferro-ferri-ferro-electric system. / Robinson, W. K.; Carboni, C.; Gleeson, H. F.; Hird, M.; Styring, P.; Seed, A.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 263, No. pt 4, 1995, p. 69-79.

Research output: Contribution to journalArticle

@article{968f99adbe044d35baacbbc4705d7d11,
title = "Electro-optic and piezo-optic studies of an antiferro-ferri-ferro-electric system",
abstract = "A detailed study of a novel material exhibiting antiferro-, ferri-, and ferroelectric phases has been undertaken. The tilt angle, spontaneous polarisation and the dynamics of the helical unwinding have been examined as a function of temperature and voltage in all the phases of interest. The material exhibits large tilt angles (approx.31°) and values of spontaneous polarisation (approx.100nCcm-2) in cases where the helix is totally unwound. The behaviour of tilt angle as a function of applied electric field is examined in the ferri- and antiferro-electric phases. A stepwise increase in tilt angle as a function of applied voltage in the ferri-electric phase is presented, as well as unusual behaviour in the antiferro-electric state. In addition, a preliminary investigation of the change in spontaneous polarisation as a function of pressure is presented. It is shown that the dependence of spontaneous polarisation in the ferroelectric phase is relatively weak.",
author = "Robinson, {W. K.} and C. Carboni and Gleeson, {H. F.} and M. Hird and P. Styring and A. Seed",
year = "1995",
language = "English",
volume = "263",
pages = "69--79",
journal = "Molecular Crystals and Liquid Crystals",
issn = "0026-8941",
publisher = "Taylor and Francis Ltd.",
number = "pt 4",

}

TY - JOUR

T1 - Electro-optic and piezo-optic studies of an antiferro-ferri-ferro-electric system

AU - Robinson, W. K.

AU - Carboni, C.

AU - Gleeson, H. F.

AU - Hird, M.

AU - Styring, P.

AU - Seed, A.

PY - 1995

Y1 - 1995

N2 - A detailed study of a novel material exhibiting antiferro-, ferri-, and ferroelectric phases has been undertaken. The tilt angle, spontaneous polarisation and the dynamics of the helical unwinding have been examined as a function of temperature and voltage in all the phases of interest. The material exhibits large tilt angles (approx.31°) and values of spontaneous polarisation (approx.100nCcm-2) in cases where the helix is totally unwound. The behaviour of tilt angle as a function of applied electric field is examined in the ferri- and antiferro-electric phases. A stepwise increase in tilt angle as a function of applied voltage in the ferri-electric phase is presented, as well as unusual behaviour in the antiferro-electric state. In addition, a preliminary investigation of the change in spontaneous polarisation as a function of pressure is presented. It is shown that the dependence of spontaneous polarisation in the ferroelectric phase is relatively weak.

AB - A detailed study of a novel material exhibiting antiferro-, ferri-, and ferroelectric phases has been undertaken. The tilt angle, spontaneous polarisation and the dynamics of the helical unwinding have been examined as a function of temperature and voltage in all the phases of interest. The material exhibits large tilt angles (approx.31°) and values of spontaneous polarisation (approx.100nCcm-2) in cases where the helix is totally unwound. The behaviour of tilt angle as a function of applied electric field is examined in the ferri- and antiferro-electric phases. A stepwise increase in tilt angle as a function of applied voltage in the ferri-electric phase is presented, as well as unusual behaviour in the antiferro-electric state. In addition, a preliminary investigation of the change in spontaneous polarisation as a function of pressure is presented. It is shown that the dependence of spontaneous polarisation in the ferroelectric phase is relatively weak.

UR - http://www.scopus.com/inward/record.url?scp=0029222808&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029222808&partnerID=8YFLogxK

M3 - Article

VL - 263

SP - 69

EP - 79

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 0026-8941

IS - pt 4

ER -