INTER-LAYER COUPLING IN FREELY SUSPENDED FILMS OF TILTED SMECTIC LIQUID-CRYSTAL PHASES

Citation
C. Bahr et al., INTER-LAYER COUPLING IN FREELY SUSPENDED FILMS OF TILTED SMECTIC LIQUID-CRYSTAL PHASES, Thin solid films, 285, 1996, pp. 338-342
Citations number
16
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter
Journal title
ISSN journal
00406090
Volume
285
Year of publication
1996
Pages
338 - 342
Database
ISI
SICI code
0040-6090(1996)285:<338:ICIFSF>2.0.ZU;2-G
Abstract
We report on ellipsometric measurements on freely suspended liquid-cry stal films of two compounds possessing smectic-A and ferroelectric sme ctic-C phases. One of the compounds shows in addition an antiferroelec tric smectic-C-A phase. The comparison of the surface-induced order ne ar the smectic-A to smectic-C transition indicates that the latter com pound shows a considerably reduced coupling of the molecular tilt in n eighbouring layers possessing the same tilt directions.