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Creators/Authors contains: "Sabata, Zachary"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Soft Matter)
    The effect of the molecular chirality of chiral additives on the nanostructure of the twist-bend nematic (N TB ) liquid crystal phase with ambidextrous chirality and nanoscale pitch due to spontaneous symmetry breaking is studied. It is found that the ambidextrous nanoscale pitch of the N TB phase increases by 50% due to 3% chiral additive, and the chiral transfer among the biphenyl groups disappears in the N TB * phase. Most significantly, a twist-grain boundary (TGB) type phase is found at c > 1.5 wt% chiral additive concentrations below the usual N* phase and above the non-CD active N TB * phase. In such a TGB type phase, the adjacent blocks of pseudo-layers of the nanoscale pitch rotate across the grain boundaries. 
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