Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/3895
Title: | Flexoelectric studies on mixtures of compounds made of rodlike and bent-core molecules |
Authors: | Kundu, Brindaban Roy, Arun Pratibha, R. Madhusudana, N.V. |
Issue Date: | 24-Aug-2009 |
Publisher: | The American Institute of Physics |
Citation: | Applied Physics Letters, 2009, Vol.95, p081902 |
Abstract: | We report measurements of the temperature variations of the flexoelastic ratio (e1−e3)/K of octadecyl cyanobiphenyl and a mixture of this compound with another one with bent-core (BC) molecules, using hybrid aligned nematic cells. Addition of 5 mol % of the BC compound doubles the flexoelastic ratio, implying that the BC compound has ~20 times larger value compared to that of the compound with calamitic molecules. Mixtures with >11 mol % of the BC compound exhibit only a homeotropic alignment. We develop a simple model to account for this result which arises because of a large positive self-energy due to flexoelectric polarization. |
Description: | Open Access |
URI: | http://hdl.handle.net/2289/3895 |
ISSN: | 0003-6951- P 1077-3118 -E |
Alternative Location: | http://dx.doi.org/10.1063/1.3213544 |
Copyright: | 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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2009 ApplPhysLett_95_081902.pdf | Open Access | 155.7 kB | Adobe PDF | View/Open |
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