Temperature variation of film tension above the bulk smectic-A-isotropic transition in freestanding liquid-crystal films

M. Veum, E. Kutschera, N. Voshell, S. T. Wang, S. L. Wang, H. T. Nguyen, C. C. Huang

Research output: Contribution to journalReview articlepeer-review

20 Scopus citations

Abstract

We have measured the temperature variation of film tension above the bulk smectic-A-isotropic transition in freestanding films of two liquid-crystal compounds. Above the transition, the tension increases sharply with temperature, and the slope is proportional to the film's thickness regardless of whether or not the compound exhibits regular layer-by-layer thinning. The data can be interpreted in the context of theoretical models for layer thinning.

Original languageEnglish (US)
Article number020701
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume71
Issue number2
DOIs
StatePublished - Feb 1 2005

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