Physical Review E
isotropic-phase, achiral molecules, critical-point, transition, behavior, field
An experimental study of the heat capacity, mass density, magnetic-field-induced optical birefringence, linewidth and intensity of scattered light, and the viscosities associated with nematic order parameter fluctuations and fluid flow has been performed on an achiral bent-core liquid crystal above its clearing point temperature. The measurements reveal a transition between two optically isotropic phases that is consistent with recent theoretical predictions of a "tetrahedratic" form of orientational order.
Wiant, D. B.; Neupane, K.; Sharma, S.; Gleeson, Jim T.; Sprunt, Samuel N.; Jakli, Antal; Pradhan, N.; and Iannacchione, G. (2008). Observation of a Possible Tetrahedratic Phase in a Bent-Core Liquid Crystal. Physical Review E 77(6). doi: 10.1103/PhysRevE.77.061701 Retrieved from http://digitalcommons.kent.edu/cpippubs/173