Universality of the reentrant-nematicsmectic-C–smectic-Aand nematicsmectic-A–smectic-Cmulticritical points

Abstract
It is shown that by tuning the experimentally observable critical region, singularities of the phase boundaries can be observed in the immediate vicinity of the reentrant-nematicsmectic-C–smectic-A multicritical point. The exponents evaluated from these singularities are found to be identical to the universal exponents associated with the nematicsmectic-A–smectic-C multicritical point.