On the equation of state of a dense columnar liquid crystal

Details On the equation of state of a dense columnar liquid crystal On the equation of state of a dense columnar liquid crystal

2004-08-11

arxiv.org/abs/cond-mat/0408245v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 2 figures, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.93.157801

An accurate description of a columnar liquid crystal of hard disks at high packing fractions is presented using an improved free-volume theory. It is shown that the orientational entropy of the disks in the one-dimensional fluid direction leads to a different high-density scaling pressure compared to the prediction from traditional cell theory. Excellent quantitative agreement is found with recent Monte-Carlo simulation results for various thermodynamic and structural properties of the columnar state.

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