A three-dimensionally modulated structure in a chiral smectic-C liquid crystal

In this article we report the discovery of a new twist grain boundary phase. This phase is characterized by a 2-dimensional undulation of the smectic-C*-like blocks in the form of a square lattice. We suggest that this three-dimensionally modulated structure, which was not anticipated by theory, owe...

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Bibliographic Details
Published in:Current science (Bangalore) 1997-11, Vol.73 (9), p.761-765
Main Authors: Pramod, P. A., Pratibha, R., Madhusudana, N. V.
Format: Article
Language:English
Subjects:
Binary mixtures
Cooling
Crystal lattices
Crystal structure
Electric fields
Grain boundaries
Liquid crystals
Molecules
Surface texture
Transition temperature
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Summary:In this article we report the discovery of a new twist grain boundary phase. This phase is characterized by a 2-dimensional undulation of the smectic-C*-like blocks in the form of a square lattice. We suggest that this three-dimensionally modulated structure, which was not anticipated by theory, owes its origin to chiral interactions.
ISSN:0011-3891