Effect of enantiomeric excess on surface structures and phase sequences in free-standing liquid-crystal films

A. Cady, Z. Q. Liu, X. F. Han, S. T. Wang, M. Veum, N. Janarthanan, C. S. Hsu, D. A. Olson, C. C. Huang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We present differential optical reflectivity and null transmission ellipsometry data from several mixtures of MHPBC enantiomers. From this data, we have determined the chiral smectic phase sequence as a function of enantiomeric excess. The data suggest a change in the structure of the smectic-[formula presented] phase and the surface tilt state as the enantiomeric excess is reduced. The results also show that the intermediate phases, smectic [formula presented] smectic [formula presented] and smectic [formula presented] disappear sequentially on reducing the net chirality.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume66
Issue number6
DOIs
StatePublished - Dec 19 2002

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