Abstract

AbstractIn a ternary mixture of two liquid crystals and a non‐mesomorphic chiral dopant an intermediate state with an unusual texture was found between the cholesteric and the SA phase which could be identified as a separate twisted mesophase. The reflection wavelength of this mesophase does not change with temperature whereas the transmission of unpolarized light decreases from 50 to 20%.The experimental findings point to the existence of a twisted grain boundary phase.

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