Component Orientational Order Parameter in Binary Mixtures

Abstract

We have used the IR dichroism technique to measure the component order parameters of two different cyanobiphenyl compounds in two binary mixtures. The measurements clearly show that smectic-like short range order considerably enhances the orientational order in the nematic phase. Further, the temperature variation of the orientational order is also increased by virtue of that of the smectic-like short range order.

Key Words:

• binary mixtures
• component order parameter
• smectic-like short range order