Heat-Capacity Study of Free-Standing Liquid-Crystal Films

T. Pitchford, C. C. Huang, R. Pindak, J. W. Goodby

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Results of the first heat-capacity measurements of free-standing liquid-crystal films are presented. The nature of the smectic-A-hexatic-B transition of n-butyl-4′-n-hexyloxybiphenyl-4-carboxylate (46OBC) has been studied for films from about ten to thousands of smectic layers thick. Convolution fitting of thick-film results has given values of the critical exponent and amplitude ratio consistent with bulk-sample fitting results. Thin-film heat-capacity anomalies are asymmetric in shape, in contrast to results for thick films.

Original languageEnglish (US)
Pages (from-to)1239-1242
Number of pages4
JournalPhysical review letters
Issue number10
StatePublished - 1986


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