Unusual thickness-dependent heat-capacity anomaly in free-standing hexatic liquid-crystal films

C. Y. Chao, T. C. Pan, C. R. Lo, M. Veum, C. C. Huang, V. Surendranath, J. T. Ho

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

High-resolution heat-capacity and optical-reflectivity measurements have been conducted near the smectic-A to hexatic-B transition in thin free-standing films of the liquid-crystal compound 64COOBC. We find an unexpected dependence on film thickness of the integrated magnitude of the heat-capacity anomalies as the films undergo layer-by-layer transitions. We measure the penetration depths of the ordering from the surface and next-to-surface layers which are pertinent to the highly correlated thermal behavior.

Original languageEnglish (US)
Pages (from-to)385/[1995]-392/[2002]
JournalMolecular crystals and liquid crystals
Volume412
DOIs
StatePublished - Jan 1 2004
EventProceedings of the 19th International Liquid Crystal Conference, ILCC2002 - Edinburgh, United Kingdom
Duration: Jun 30 2002Jul 5 2002

Keywords

  • Heat capacity
  • Liquid-crystal thin films
  • Optical reflectivity

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