Experimental characterization of layer thinning transitions

S. Pankratz, P. M. Johnson, H. T. Nguyen, C. C. Huang

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


The layer thinning transitions in free-standing films of several liquid-crystal compounds containing different combinations of flexible tails have been systematically investigated. The results clearly indicate that fluorination of liquid-crystal compounds plays an essential role in the layer-by-layer thinning transitions of free-standing films above the bulk smectic-A–isotropic transition temperature [Formula Presented] The surface ordering effects of these fluorinated compounds above [Formula Presented] is contrasted with recent x-ray results that suggest surface disorder below [Formula Presented] in a fluorinated liquid-crystal compound.

Original languageEnglish (US)
Pages (from-to)R2721-R2724
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Issue number3
StatePublished - 1998


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