A reentrant orthogonal smectic-A (SmA) phase below the tilted smectic-C phase is established in a chiral liquid crystalline compound. The temperature evolution of the layer spacing confirms monolayer structure in both SmA phases, the upper SmA as well as the reentrant SmA phase. The reentrancy of the SmA phase is explained on the basis of the mean field free energy taking into account nonmonotoneous temperature dependence of the lowest term coefficient.
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| http://dx.doi.org/10.1103/PhysRevE.83.020701 | DOI Listing |
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Article Synopsis
- - This study examines the properties of a specific liquid crystal compound known as SNS, focusing on its behavior when exposed to light and its electrical characteristics in different phases (crystalline and SmC).
- - Real-time analysis reveals that a charge transfer excited state forms quickly following UV exposure, with varying lifetimes observed in different phases due to local environment differences; the crystalline phase exhibits slower dynamics.
- - Results show that UV light significantly boosts SNS conductivity, especially in the SmC phase, with potential applications identified in optoelectronic devices like light switches and photodetectors.
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