Publication Title

Physical Review Letters

Publication Date

12-1-1986

Document Type

Article

DOI

10.1103/PhysRevLett.57.2830

Disciplines

Physics

Abstract

We report light-scattering measurements under pressures up to 1000 bars of nematic short-range order in the isotropic phase of the lyotropic liquid-crystal system cesium perfluoro-octanoate and water. The nematic-to-isotropic transition temperature is a nonlinear function of pressure which changes strongly with concentration and dTNI/dp is from 10 to 100 times smaller than in typical thermotropic nematics. We also find the bare correlation length in the isotropic phase to be 12.5 ± 2 Å.

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