Smectic-Ahexatic-B transition of various compounds in the homologous series of n-alkyl-4-n-alkoxybiphenyl-4-carboxylate

T. Pitchford, G. Nounesis, S. Dumrongrattana, J. M. Viner, Cheng-Cher Huang, J. W. Goodby

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Abstract

Extensive high-resolution heat-capacity measurements have been carried out near the smectic-Ahexatic-B transition of various compounds in the homologous series of n-alkyl-4-n-alkoxybiphenyl-4-carboxylate. In contrast with the nematicsmectic-A and smectic-Asmectic-C (or chiral-smectic-C) transitions, the critical exponent characterizing the smectic-Ahexatic-B heat-capacity anomaly is found to be large and does not vary monotonically with the size of the disordered-phase (i.e., smectic-A) temperature range.

Original languageEnglish (US)
Pages (from-to)1938-1940
Number of pages3
JournalPhysical Review A
Volume32
Issue number3
DOIs
StatePublished - Jan 1 1985

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