Nature of the layer-by-layer transition associated with the smectic-A-crystal-B transition in free-standing liquid-crystal films

A. J. Jin, T. Stoebe, C. C. Huang

Research output: Contribution to journalArticle

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Abstract

Utilizing our ac free-standing film calorimeter, we have observed the formation of a series of crystal-B layers at the smectic-A-vapor interface near the smectic-A-crystal-B transition of 4O.8 [N-(4-n-butyloxybenzylidene)-4-n-octylaniline]. The temperature dependence of the penetration of the crystal-B order into the smectic-A substrate can be well described by a simple-power law, L=L0t-ν with ν-0.37, indicating that the dominant intermolecular interaction is van der Waals like. Further analysis has demonstrated the penetration length of the surface ordering to be slightly less than one molecular length.

Original languageEnglish (US)
Pages (from-to)R4791-R4794
JournalPhysical Review E
Volume49
Issue number6
DOIs
StatePublished - Jan 1 1994

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