EFFECT OF FREE SURFACES ON THE SMECTIC-A-HEXATIC-B-CRYSTAL-E TRANSITIONS IN THIN FREESTANDING FILMS OF THE LIQUID-CRYSTAL COMPOUND N-HEPTYL-4'-N-PENTYLOXYBIPHENYL-4-CARBOXYLATE (750BC)

Authors
GEER R STOEBE T HUANG CC
Citation
R. Geer et al., EFFECT OF FREE SURFACES ON THE SMECTIC-A-HEXATIC-B-CRYSTAL-E TRANSITIONS IN THIN FREESTANDING FILMS OF THE LIQUID-CRYSTAL COMPOUND N-HEPTYL-4'-N-PENTYLOXYBIPHENYL-4-CARBOXYLATE (750BC), Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 48(1), 1993, pp. 408-427
Citations number
39
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
48
Issue
1
Year of publication
1993
Pages
408 - 427
Database
ISI
SICI code
1063-651X(1993)48:1<408:EOFSOT>2.0.ZU;2-M
Abstract
An ac free-standing film calorimeter has been recently developed to in vestigate the physical properties of the smectic-A-hexatic-B-crystal-E transitions in free-standing films of the liquid-crystal compound n-h eptyl-4'-n-pentyloxybiphenyl-4-carboxylate (75OBC). Due to the surface -enhanced order on free surfaces, we have discovered many new physical phenomena, e.g., a rich phase diagram, layer-by-layer transitions nea r a continuous transition, an interplay between a strong first-order s urface transition and a nearby continuous transition, etc.