Flexoelectric studies on mixtures of compounds made of rodlike and bent-core molecules
| dc.contributor.author | Kundu, Brindaban | |
| dc.contributor.author | Roy, Arun | |
| dc.contributor.author | Pratibha, R. | |
| dc.contributor.author | Madhusudana, N.V. | |
| dc.date.accessioned | 2010-01-20T11:38:37Z | |
| dc.date.available | 2010-01-20T11:38:37Z | |
| dc.date.issued | 2009-08-24 | |
| dc.description | Open Access | en |
| dc.description.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. | en |
| dc.identifier.citation | Applied Physics Letters, 2009, Vol.95, p081902 | en |
| dc.identifier.issn | 0003-6951- P | |
| dc.identifier.issn | 1077-3118 -E | |
| dc.identifier.uri | http://hdl.handle.net/2289/3895 | |
| dc.language.iso | en | en |
| dc.publisher | The American Institute of Physics | en |
| dc.relation.uri | http://dx.doi.org/10.1063/1.3213544 | en |
| dc.rights | 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. | en |
| dc.title | Flexoelectric studies on mixtures of compounds made of rodlike and bent-core molecules | en |
| dc.type | Article | en |