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.
Original language | English (US) |
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Pages (from-to) | R6337-R6339 |
Journal | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |
Volume | 55 |
Issue number | 6 |
DOIs | |
State | Published - 1997 |