Issue |
Eur. Phys. J. AP
Volume 9, Number 3, March 2000
|
|
---|---|---|
Page(s) | 247 - 252 | |
DOI | https://doi.org/10.1051/epjap:2000111 | |
Published online | 15 March 2000 |
https://doi.org/10.1051/epjap:2000111
Homogeneous and heterogeneous switching in antiferroelectric liquid crystals
Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1
3PJ, UK
Corresponding author: beccherelli@die.ing.uniromal.it
Received:
18
January
1999
Revised:
3
June
1999
Accepted:
2
February
2000
Published online: 15 March 2000
An experimental investigation of hysteretic switching in antiferroelectric liquid crystals has been carried out. It is shown that in switching from the antiferroelectric state to the ferroelectric state there exists both a heterogeneous process involving the growth of finger-like domains and a homogeneous process in which the whole cell uniformly switches. At high field slew rates the homogeneous process dominates. However, ferroelectric to antiferroelectric switching involves only a heterogeneous process. A simple analytic model is then used to describe the experimental results and thus understand the competition between homogeneous and heterogeneous switching.
PACS: 61.30.Eb – Experimental determinations of smectic, nematic, cholesteric and other structures / 61.30.Cz – Theory and models of liquid crystal structure / 42.79.Kr – Display devices, liquid-crystal devices
© EDP Sciences, 2000
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.