Threshold field for switching the de vries SA * phase in a low molar mass organosiloxane material

Carlo Carboni, Abraham K. George, Wafa Al-Shizawi, Michael W. Zoghaib, Jawad Naciri

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The existence of a threshold field for the onset of switching in the organosiloxane material, ETSiKN65, has been investigated. This material displays a de Vries smectic A* type phase, and the presence of the threshold confers an anti-ferroelectric-like response. However, it has been found that the value of the threshold depends on the thickness of the specimen, in fact it vanishes altogether if the specimen is more than 20 μm thick. It is concluded that the threshold is due to a complex anchoring mechanism at the interface with the cell walls.

Original languageEnglish
Pages (from-to)1427-1431
Number of pages5
JournalLiquid Crystals
Volume37
Issue number11
DOIs
Publication statusPublished - Nov 2010

Fingerprint

Molar mass
thresholds
Ferroelectric materials
Cells

Keywords

  • De Vries phase
  • Organosiloxane

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)
  • Chemistry(all)

Cite this

Threshold field for switching the de vries SA * phase in a low molar mass organosiloxane material. / Carboni, Carlo; George, Abraham K.; Al-Shizawi, Wafa; Zoghaib, Michael W.; Naciri, Jawad.

In: Liquid Crystals, Vol. 37, No. 11, 11.2010, p. 1427-1431.

Research output: Contribution to journalArticle

@article{efcd774336fb441db675ed14338f2780,
title = "Threshold field for switching the de vries SA * phase in a low molar mass organosiloxane material",
abstract = "The existence of a threshold field for the onset of switching in the organosiloxane material, ETSiKN65, has been investigated. This material displays a de Vries smectic A* type phase, and the presence of the threshold confers an anti-ferroelectric-like response. However, it has been found that the value of the threshold depends on the thickness of the specimen, in fact it vanishes altogether if the specimen is more than 20 μm thick. It is concluded that the threshold is due to a complex anchoring mechanism at the interface with the cell walls.",
keywords = "De Vries phase, Organosiloxane",
author = "Carlo Carboni and George, {Abraham K.} and Wafa Al-Shizawi and Zoghaib, {Michael W.} and Jawad Naciri",
year = "2010",
month = "11",
doi = "10.1080/02678292.2010.519058",
language = "English",
volume = "37",
pages = "1427--1431",
journal = "Liquid Crystals",
issn = "0267-8292",
publisher = "Taylor and Francis Ltd.",
number = "11",

}

TY - JOUR

T1 - Threshold field for switching the de vries SA * phase in a low molar mass organosiloxane material

AU - Carboni, Carlo

AU - George, Abraham K.

AU - Al-Shizawi, Wafa

AU - Zoghaib, Michael W.

AU - Naciri, Jawad

PY - 2010/11

Y1 - 2010/11

N2 - The existence of a threshold field for the onset of switching in the organosiloxane material, ETSiKN65, has been investigated. This material displays a de Vries smectic A* type phase, and the presence of the threshold confers an anti-ferroelectric-like response. However, it has been found that the value of the threshold depends on the thickness of the specimen, in fact it vanishes altogether if the specimen is more than 20 μm thick. It is concluded that the threshold is due to a complex anchoring mechanism at the interface with the cell walls.

AB - The existence of a threshold field for the onset of switching in the organosiloxane material, ETSiKN65, has been investigated. This material displays a de Vries smectic A* type phase, and the presence of the threshold confers an anti-ferroelectric-like response. However, it has been found that the value of the threshold depends on the thickness of the specimen, in fact it vanishes altogether if the specimen is more than 20 μm thick. It is concluded that the threshold is due to a complex anchoring mechanism at the interface with the cell walls.

KW - De Vries phase

KW - Organosiloxane

UR - http://www.scopus.com/inward/record.url?scp=78549234101&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78549234101&partnerID=8YFLogxK

U2 - 10.1080/02678292.2010.519058

DO - 10.1080/02678292.2010.519058

M3 - Article

VL - 37

SP - 1427

EP - 1431

JO - Liquid Crystals

JF - Liquid Crystals

SN - 0267-8292

IS - 11

ER -