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http://hdl.handle.net/2289/2880| Title: | Electromechanical effect in cholesteric mixtures with a compensation temperature |
| Authors: | Padmini, H.P. Madhusudana, N.V. |
| Issue Date: | 1993 |
| Publisher: | Taylor & Francis |
| Citation: | Liquid Crystals, 1993, Vol.14, p497 - 511 |
| Abstract: | An electromechanical effect arises in cholesteric (N*) liquid crystals due to a cross-coupling between fluxes and forces specific to chiral systems. We recently described an experiment to study this effect on samples with fixed boundary conditions. Here, we have derived the basic theoretical expressions relevant to this experiment. We have now used this technique to record the electromechanical signal across the compensation temperature of cholesteric mixtures consisting of cholesteryl chloride, 4'-heptyl-4-cyanobiphenyl and 2-cyano-4-heptylphenyl 4'-pentylbiphenyl-4-carboxylate. The sign of the electromechanical signal changes at the compensation point, clearly demonstrating the macroscopic origin of this effect.19 |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/2880 |
| ISSN: | 0267-8292 1366-5855 (Online) |
| Alternative Location: | http://dx.doi.org/10.1080/02678299308027665 |
| Copyright: | 1993 Taylor & Francis |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1993 LC V14 p497.pdf Restricted Access | Restricted Access | 632.79 kB | Adobe PDF | View/Open Request a copy |
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