Abstract
Detailed calorimetric measurements have been carried out on the chiral and racemic versions of one chiral liquid-crystal compound that exhibits an unusual and new smectic-A* (Sm-A*) phase in the pure chiral compound. Both the smectic-A (Sm-A)smectic-C (Sm-C) transition in the racemic compound and the Sm-A*chiralSm-C transition in the pure chiral compound display a first-order transition with heat-capacity anomalies qualitatively similar to but quantitatively different from that observed in the ordinary Sm-ASm-C transition. Results from optical microscopic studies on the phase diagram of binary mixtures of the dextro and levo versions of the chiral compounds are reported.
Original language | English (US) |
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Pages (from-to) | 4153-4156 |
Number of pages | 4 |
Journal | Physical Review A |
Volume | 40 |
Issue number | 7 |
DOIs | |
State | Published - 1989 |