Diffraction patterns from thin hexatic films

Amnon Aharony*, Mehran Kardar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


On the basis of a "spin-wave" analysis of coupled hexatic layers, we propose a form for the diffraction patterns from thin liquid-crystal films. We note that the deviations from "two-dimensional behavior" observed in recent experiments on films of a few layers can in fact be used to extract the effective hexatic Frank constant, and to probe its temperature dependence. Our predictions are found to be quite consistent with the experimental observations.

Original languageEnglish
Pages (from-to)2855-2858
Number of pages4
JournalPhysical Review Letters
Issue number25
StatePublished - 1988


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