Calorimetric study of nematic prewetting

Author： Liu Xuewu   Allender D. W.   Finotello D.  

Publisher： Edp Sciences

E-ISSN： 1286-4854|59|6|848-854

ISSN： 0295-5075

Source： EPL (EUROPHYSICS LETTERS), Vol.59, Iss.6, 2010-03, pp. : 848-854

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

We report specific-heat measurements for a series of liquidcrystals imbedded in a porous cylindrical geometry. Above thenematic-to-isotropic transition and dependent on nematic width (orchain length), the specific heat shows a small peak. In analogy toknown ellipsometry results, the peak is believed to be thesignature of a nematic prewetting transition.

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