Surface-aligning field in smectic liquid-crystal films

Lidong Pan, Cheng-Cher Huang

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2 Scopus citations


Two modified mean-field J1-J2 models are studied to explain the surface reduction of twisting power in the helical smectic-Cα* phase in free-standing liquid crystal films. Profiles of the surface interlayer interaction are calculated from the experimental results. The calculations reveal the existence of a strong surface field and indicate that the surface field is the reason for the observed reduced twisting power near the surface region. Our results provide a quantitative study of the interlayer interactions through surface effects in smectic liquid crystals.

Original languageEnglish (US)
Article number051703
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number5
StatePublished - Nov 9 2011

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