Thermal-conductivity studies near the smectic-A-smectic-C transition in a liquid-crystal compound

E. K. Hobbie, C. C. Huang

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9 Scopus citations

Abstract

High-resolution thermal-conductivity and heat-capacity studies were carried out on the same sample in the vicinity of the smectic-A-to-smectic-C transition of N-(4-n-heptyloxybenzylidene)-4-n-butylaniline (70.4). The heat capacity shows a mean-field jump and can be well described by an extended-mean-field model. The thermal conductivity also shows a jump near the smectic-A-smectic-C transition. Instead of a smooth thermal diffusivity, as predicted by a conventional dynamic theory, we found both a peak and a dip in the thermal diffusivity near the transition temperature.

Original languageEnglish (US)
Pages (from-to)5459-5462
Number of pages4
JournalPhysical Review A
Volume36
Issue number11
DOIs
StatePublished - 1987

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Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.

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