Publication Title

Physical Review E

Publication Date

4-1998

Document Type

Article

DOI

10.1103/PhysRevE.57.R3711

Keywords

Smectic A Phase, Liquid Crystals, Model, Order

Disciplines

Physics

Abstract

The nematic (N) to lamellar (Lα) phase transition in binary mixtures of cesium-perfluoro-octanoate (CsPFO) and water has been studied by high-resolution synchrotron x-ray scattering at 46.6 weight % CsPFO. The longitudinal correlation length ξ and the susceptibility σ associated with the lamellar phase fluctuations in the N phase, measured over three decades of reduced temperature, diverge with critical exponents ν=0.86±0.04 and γ=1.37±0.11, respectively. These results show that the N to Lα phase transition is quantitatively similar to the N to smectic-A phase transition of thermotropic liquid crystals with a wider nematic range.

Comments

Copyright 1998 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevE.57.R3711.


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