| Issue |
EPL
Volume 92, Number 2, October 2010
|
|
|---|---|---|
| Article Number | 26002 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/92/26002 | |
| Published online | 05 November 2010 | |
Field-induced transformations in the biaxial order of non-tilted phases in a bent-core smectic liquid crystal
1
Department of Electronic and Electrical Engineering, School of Engineering, Trinity College, University of Dublin Dublin 2, Ireland, EU
2
School of Electronic & Communication Engineering, Dublin Institute of Technology - Dublin, Ireland, EU
3
Institute of Chemistry, Organic Chemistry, Martin-Luther-University Halle-Wittenberg - D-06120 Halle, Germany, EU
Received:
11
August
2010
Accepted:
27
September
2010
The structural and electro-optic investigations of an achiral bent-core molecule in SmAPA phase, in which the polar directors in the neighboring layers are arranged anti-ferroelectrically, show that it undergoes transformation from one biaxial to another biaxial structure via a quasi-stable uniaxial structure on the application of the electric field. The non-continuous change in biaxiality is explained by an intermediate state in which the secondary directors in the neighboring layers are perpendicular to each other.
PACS: 61.30.Gd – Orientational order of liquid crystals; electric and magnetic field effects on order / 77.80.-e – Ferroelectricity and antiferroelectricity / 78.20.Fm – Birefringence
© EPLA, 2010
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