LAYER COMPRESSION IN FREESTANDING LIQUID-CRYSTAL FILMS

Authors
MACH P JOHNSON PM WEDELL ED LINTGEN F HUANG CC
Citation
P. Mach et al., LAYER COMPRESSION IN FREESTANDING LIQUID-CRYSTAL FILMS, Europhysics letters, 40(4), 1997, pp. 399-404
Citations number
17
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
40
Issue
4
Year of publication
1997
Pages
399 - 404
Database
ISI
SICI code
0295-5075(1997)40:4<399:LCIFLF>2.0.ZU;2-S
Abstract
Large negative thermal-expansion coefficients of a partially perfluori nated liquid-crystal compound as a function of temperature and number of layers have been obtained from free-standing films. Exploiting this behavior, as well as novel layer-by-layer thinning transitions, we ha ve demonstrated the existence of an anomalous layer compression. For a 3-layer film, the magnitude of total compression was found to be as l arge as 3 Angstrom.