Publication Title

Physical Review E

Publication Date

10-15-1994

Document Type

Article

DOI

10.1103/PhysRevE.50.2863

Keywords

Order, Transition, Films

Disciplines

Physics

Abstract

Free-standing monodomain thick films of three liquid crystalline compounds were examined by x-ray scattering. These compounds exhibit a unique enantiotropic crystal-B-hexatic-B-smectic-A phase sequence with no evidence of herringbone order. The hexatic order parameter Cg changes in the hexatic phase with critical exponent beta=0.15+/-0.03. Temperature dependence of the in-plane positional order correlation length suggests a strongly first-order hexatic-B to crystal-B phase transition with indiscernible enthalpy change.

Comments

Copyright 1994 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevE.50.2863.


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