Do the short helices exist in the nematic TB phase?
classification
❄️ cond-mat.soft
keywords
phasefocalnematicarraysclosecompoundsconicconics
read the original abstract
Dimeric compounds forming twist-bend nematic, Ntb, phase show unusual optical texture related to the formation of arrays of focal conic defects. Some of the focal conics show submicron internal structure with 8 nm periodicity, which is very close to that found in the crystalline phase of the material, suggesting surface freezing.
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