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- Title
Experimental study of de Vries properties in antiferroelectric smectic liquid crystals.
- Authors
Sandhya, K. L.; Panarin, Yu. P.; Panov, V. P.; Vij, J. K.; Dabrowski, R.
- Abstract
Results of the experimental study on different antiferroelectric liquid crystal (AFLC) materials are presented using a number of techniques such as the optical birefringence, electro-optics and the measurements of optical thickness of free-standing films. Despite differences in the molecular structures of the various AFLC materials studied, these are found to exhibit a de Vries type of smecticA* ( SmA *) properties in a temperature range higher than SmC * . This correlation leads to the conclusion that these two classes of liquid crystals are related to each other. Furthermore, we suggest that these arise from the same physical mechanism, namely the existence of the weak synclinic (or reduced anticlinic) correlations between the neighbouring molecular tilt directions.
- Subjects
LIQUID crystals; DOUBLE refraction; MOLECULAR structure; TEMPERATURE; LIGHT sources
- Publication
European Physical Journal E -- Soft Matter, 2008, Vol 27, Issue 4, p397
- ISSN
1292-8941
- Publication type
Article
- DOI
10.1140/epje/i2008-10409-1