Polarization periodicity in the B1 columnar phase determined by resonant x-ray scattering

C. L. Folcia, J. Ortega, J. Etxebarria, Lidong Pan, Shun Wang, C. C. Huang, V. Ponsinet, P. Barois, R. Pindak, N. Gimeno

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Abstract

We report structural results that evidence the polarization distribution of the blocks in the columnar phase of an achiral bent-core liquid crystal. The study was performed using resonant x-ray diffraction at the sulfur K edge on oriented samples aligned on substrates. The extra periodicity is revealed through the violation of the systematic extinction rule of the structural symmetry group along the experimentally accessible diffraction direction. Further data obtained from the polarization analysis of a resonant reflection give information concerning the transition mechanism between B1 and B2 phases.

Original languageEnglish (US)
Article number010701
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume84
Issue number1
DOIs
StatePublished - Jul 14 2011

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