Publication Title

Physical Review E

Publication Date

10-1994

Document Type

Article

DOI

10.1103/PhysRevE.50.2863

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 C6 changes in the hexatic phase with critical exponent β=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.

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