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Title: An ANNNXY model for transversely polarised non-chiral smectic liquid crystals
Authors: Roy, Arun
Madhusudana, N.V.
Issue Date: 1997
Publisher: EDP Sciences
Citation: Europhysics Letters, 1997, Vol.39, p335-339
Abstract: We propose an axial next nearest neighbour xy (ANNNXY) model to describe phase transitions in smectic liquid crystals made of bent non-chiral molecules which exhibit transverse polarisation. The model includes a polar and a quadrupolar NN coupling as well as a competing antiferroelectric NNN coupling between the layers. As the temperature is lowered, the most general sequence of phases predicted by the model is: paraelectric-helielectric ()- antiferroelectric-reentrant -4 layer antiphase-helielectric ()-ferroelectric. We believe that and the antiphase have been seen in very recent experiments.
Description: Restricted Access.
ISSN: 0295-5075
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Copyright: 1997 EDP Sciences
Appears in Collections:Research Papers (SCM)

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