Effect of the transverse dipole moment on the smectic-Asmectic-C (or chiral-smectic-C) transition

H. Y. Liu, Cheng-Cher Huang, T. Min, M. D. Wand, D. M. Walba, N. A. Clark, Ch Bahr, G. Heppke

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Calorimetric investigations have been carried out on five different liquid-crystal compounds near their smectic-A(Sm-A)smectic-C (Sm-C) [orsmectic-C* (Sm-C*)] transitions. Contrary to the previous observation, our experimental results demonstrate that the Sm-ASm-C (orSm-C*) transition may not become first order with reducing the Sm-A phase temperature range alone. We have also found that the magnitude of the transverse dipole moment of the constituent molecules, but not the bulk polarization only, has a strong effect on the nature of these phase transitions.

Original languageEnglish (US)
Pages (from-to)6759-6762
Number of pages4
JournalPhysical Review A
Volume40
Issue number11
DOIs
StatePublished - Jan 1 1989

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