Unique pitch evolution in the smectic-Cα* phase

Z. Q. Liu*, B. K. McCoy, S. T. Wang, R. Pindak, W. Caliebe, P. Barois, P. Fernandes, H. T. Nguyen, Chain-Shu Hsu, Shun Wang, C. C. Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Employing resonant x-ray diffraction, we observed unique pitch evolutions in the smectic-Cα* phase in mixtures of two antiferroelectric liquid crystals. Our results show that the pitch in this phase continuously evolves across 4 layers, contradicting a theoretical model that predicts that the smectic-CFI2* phase intervenes in the smectic-Cα* phase. The phase sequences we found can be explained by another model that includes one type of long-range interaction among smectic layers.

Original languageEnglish
Article number077802
JournalPhysical Review Letters
Issue number7
StatePublished - 17 Aug 2007

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