Ferroelectric nematic liquid-crystal phases of dipolar hard ellipsoids

Marc Baus and Jean-Louis Colot
Phys. Rev. A 40, 5444 – Published 1 November 1989
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Abstract

A search for ferroelectric nematic liquid crystals is carried out on the basis of a simple theoretical model viewing the nonspherical polar molecules as hard ellipsoids of revolution with an embedded permanent dipole oriented along the symmetry axis. The density-dipole moment-aspect ratio phase diagram of the dipolar hard ellipsoids has been determined with the aid of an approximate density-functional theory that was shown recently to lead to good quantitative agreement with the computer simulations of the isotropic-nematic transition of hard ellipsoids. For the dipolar hard ellipsoids, two types of stable ferroelectric nematic phases are found for dipole moments and aspect ratios exceeding some reasonable threshold values.

  • Received 15 May 1989

DOI:https://doi.org/10.1103/PhysRevA.40.5444

©1989 American Physical Society

Authors & Affiliations

Marc Baus and Jean-Louis Colot

  • Université Libre de Bruxelles, Case Postale 231, Campus Plaine, B-1050 Brussels, Belgium

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Issue

Vol. 40, Iss. 9 — November 1989

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