Answers are grounded in this paper and cite their sources.
The unit cell structures of two ferrielectric liquid-crystal phases are determined from ellipsometric studies of freestanding films in a nondistorting rotatable electric field. A highly biaxial mode with out-of-plane distortions describes all of the data from two different compounds. Qualitative and quantitative features of the data rule out alternate models. We also present a detailed explanation for apparent inconsistencies between previous resonant x-ray and optical experiments.
No takes yet. Share an insight, caveat, or question.
Johnson et al. (2000) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: