Theory of piezoelectricity in nematic liquid crystals, and of the cholesteric ordering
- 1 November 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 14 (5) , 1835-1841
- https://doi.org/10.1103/physreva.14.1835
Abstract
A statistical-mechanical theory of the elastic constants of a liquid crystal based on the Onsager expansion is reexamined, with emphasis on the terms linear in the gradients of the director. This gives a microscopic theory of the piezoelectric effect in nematic liquid crystals, and of the spontaneous twisting of a cholesteric. Model cases of tapered rods, bent rods, and threaded rods are considered.Keywords
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