Phase transitions in liquid crystals under negative pressures
- Manjuladevi, V.
- Pratibha, R.
- Madhusudana, N. V.
Publication date
January 2002
DOI Publisher
American Physical Society (APS)Abstract
We report the first measurements of orientational order parameters and phase transition temperatures in nematic and smectic A liquid crystals under negative pressures generated by an isochoric cooling of small droplets embedded in a glass former. Comparison of isobaric and isochoric measurements allows us to estimate the coefficients coupling the order parameter and density of an extended Landau-de Gennes model of the nematic phase
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