Influence of Pressure on Smectic A-Nematic Phase Transition

Details Influence of Pressure on Smectic A-Nematic Phase Transition Influence of Pressure on Smectic A-Nematic Phase Transition

1997-08-06

arxiv.org/abs/cond-mat/9708044v1

Physics

Condensed Matter

Soft Condensed Matter

10 pages, no figure, LaTeX format,e-mail:kisor@juphys.ernet.in, Submitted to Phys. Rev. E

Scientific paper

We propose a Landau-de Gennes phenomenological model to describe the pressure induced smectic A-nematic phase transition. The pressure induced smectic A phase transitions are discussed for varying coupling between orientational and translational order parameter. Increasing the pressure, the first order nematic-smectic A transition becomes second order at a tricritical point which agrees fairly with available experimental results.

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