Surface-induced order near the smectic-A - smectic-C transition: Comparison 
between ferroelectric and antiferroelectric compounds

Bahr, Christian; Booth, C. J.; Fliegner, Daniela; Goodby, J. W.

doi:10.1080/00150199608008364

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Surface-induced order near the smectic-A - smectic-C transition: Comparison between ferroelectric and antiferroelectric compounds

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Bahr, Christian
Group Structure formation in soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Bahr, C., Booth, C. J., Fliegner, D., & Goodby, J. W. (1996). Surface-induced order near the smectic-A - smectic-C transition: Comparison between ferroelectric and antiferroelectric compounds. Ferroelectrics, 178(1), 229-236. doi:10.1080/00150199608008364.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-B9A4-B

Abstract

Ellipsometric measurements on freely suspended liquid-crystal films are conducted in order to compare the formation of the smectic-C phase at the free surface of two liquid-crystal compounds. Whereas both compounds possess the smectic-A and the ferroelectric smectic-C phase, only one of the compounds shows in addition the antiferroelectric smectic-CA phase. Our results reveal that the latter compound shows a considerably reduced coupling of the molecular tilt in neighbouring smectic layers.