Heat capacity near the smectic-A hexatic-B and hexatic-BE transitions of n-hexyl-4-n-pentyloxybiphenyl-4-carboxylate (65OBC)

J. M. Viner, D. Lamey, C. C. Huang, R. Pindak, J. W. Goodby

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

High-resolution ac calorimetry was used to measure the heat capacity of n-hexyl-4-n-pentyloxybiphenyl-4-carboxylate in the vicinity of the smectic-A (SmA)hexatic-B and hexatic-B-E transitions. The SmA hexatic-B transition was found to be continuous with critical exponents -=+=0.610.02 and amplitude ratio A+A-=0.840.03. The addition of a crystalline-B material [N-(4-n- butyloxybenzylidene)-4-octylaniline (4O.8), 10 wt.%] produced a weakly-first-order SmA hexatic-B phase transition. The data with

Original languageEnglish (US)
Pages (from-to)2433-2441
Number of pages9
JournalPhysical Review A
Volume28
Issue number4
DOIs
StatePublished - Jan 1 1983

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