Volume 40, Number 4, November II 1997
|Page(s)||399 - 404|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Layer compression in free-standing liquid-crystal films
School of Physics and Astronomy, University of Minnesota,
Minneapolis, Minnesota, 55455 U.S.A.
Corresponding author: firstname.lastname@example.org
Accepted: 30 September 1997
Large negative thermal-expansion coefficients of a partially perfluorinated 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 have demonstrated the existence of an anomalous layer compression. For a 3-layer film, the magnitude of total compression was found to be as large as 3 Å.
PACS: 61.30.Eb – Experimental determinations of smectic, nematic, cholesteric, and other structures / 83.70.Jr – Liquid crystals: nematic, cholesteric, smectic, discotic, etc.
© EDP Sciences, 1997
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