Theory of Ferroelectric Nanoparticles in Nematic Liquid Crystals

Details Theory of Ferroelectric Nanoparticles in Nematic Liquid Crystals Theory of Ferroelectric Nanoparticles in Nematic Liquid Crystals

2009-02-18

arxiv.org/abs/0902.3270v1

Phys. Rev. Lett. 102, 197802 (2009)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, including 4 postscript figures, uses REVTeX 4

Scientific paper

10.1103/PhysRevLett.102.197802

Recent experiments have reported that ferroelectric nanoparticles have drastic effects on nematic liquid crystals--increasing the isotropic-nematic transition temperature by about 5 K, and greatly increasing the sensitivity to applied electric fields. To understand these effects, we develop a theory for the statistical mechanics of ferroelectric nanoparticles in liquid crystals. This theory predicts the enhancements of liquid-crystal properties, in good agreement with experiments. These predictions apply even when electrostatic interactions are partially screened by moderate concentrations of ions.

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