Unusual thickness-dependent thermal behavior in chiral smectic free-standing liquid-crystal films

C. Y. Chao, C. R. Lo, Y. H. Liu, D. R. Link, J. E. Maclennan, N. A. Clark, M. Veum, C. C. Huang, J. T. Ho

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We observe, in free-standing films of a chiral smectic liquid crystal, a series of discrete transitions in the relative orientation of the tilt of the interior and surface layers. These transitions include a remarkable reentrant synclinicanticlinic-synclinic ordering sequence of the film surfaces in the presence of an electric field upon cooling. The profiles of the associated heat-capacity anomalies are found to be strongly thickness-dependent and exhibit a novel crossover behavior in reduced dimensions.

Original languageEnglish (US)
JournalMolecular Crystals and Liquid Crystals
Volume412
DOIs
StatePublished - Dec 1 2004

Keywords

  • Heat capacity
  • Liquid-crystal films
  • Phase transition
  • Synclinic and anticlinic ordering

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