Induced hexatic phase in a free-standing two-layer N-(4-n-butoxybenzylidene)-4-n-octylaniline film

C. F. Chou, A. J. Jin, C. Y. Chao, S. W. Hui, Cheng-Cher Huang, J. T. Ho

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Electron diffraction shows that a free-standing two-layer film of N-(4-n-butoxybenzylidene)-4-n-octylaniline exhibits smectic-A, hexatic-B, and crystal-B phases upon cooling. The hexatic-B is preceded by a phase, called hexatic-[Formula Presented], with hexatic-like positional correlations but no sixfold symmetric arcs in its diffraction pattern. The smectic-A–hexatic [Formula Presented] transition is accompanied by a strong heat-capacity and optical-reflectivity anomaly.

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