Fluids of dipolar hard ellipsoids: Structural properties and isotropic–nematic phase transitions

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Abstract
The hypernetted‐chain (HNC) approximation is solved for fluids of dipolar hard ellipsoids and the structural, thermodynamic, and dielectric properties of the isotropic phase are discussed in some detail. Both prolate and oblate particles are considered and the isotropic–nematic transition is investigated using density functional theory (DFT). For fluids of prolate particles dipolar forces are found to have a significant effect upon the isotropic–nematic transition which occurs at lower densities as the dipole moment is increased. For the oblate case the dipolar interactions have only a very small, if any, influence upon the isotropic–nematic transition density. For both prolate and oblate particles the present HNC/DFT calculations do not predict ferroelectric nematic phases.