Volume 71, Number 6, September 2005
|Page(s)||945 - 951|
|Section||Condensed matter: structural, mechanical and thermal properties|
|Published online||12 August 2005|
Unusual thickness-dependent thermal behavior due to molecular tilt coupling strength in free-standing thin films
Department of Physics, National Taiwan University - Taipei 10617, Taiwan, ROC
Corresponding author: firstname.lastname@example.org
Accepted: 19 July 2005
We report the results of thermal and structural studies near the -C–-I critical point in free-standing thin films of . The profiles of the -C–-I heat-capacity anomalies are found to exhibit an unexpected crossover behavior with film thickness in reduced dimensions, which is qualitatively similar to that seen in by Yao et al. in the bulk. Moreover, we observe the existence of a surface hexatic -L phase in films of less than eight layers whose phase sequence is, however, dramatically different from that observed in thicker films.
PACS: 61.30.Eb – Experimental determinations of smectic, nematic, cholesteric, and other structures / 64.70.Md – Transitions in liquid crystals
© EDP Sciences, 2005
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