Calorimetric study of nematic prewetting
Department of Physics, Kent State University -
Kent, OH 44242-0001, USA
Accepted: 20 June 2002
We report specific-heat measurements for a series of liquid crystals imbedded in a porous cylindrical geometry. Above the nematic-to-isotropic transition and dependent on nematic width (or chain length), the specific heat shows a small peak. In analogy to known ellipsometry results, the peak is believed to be the signature of a nematic prewetting transition.
PACS: 61.30.Gd – Orientational order of liquid crystals; electric and magnetic field effects on order / 64.70.Md – Transitions in liquid crystals / 68.08.Bc – Wetting
© EDP Sciences, 2002