The order parameter dependence of the flexoelectric coefficients in nematic liquid crystalsReport as inadecuate




The order parameter dependence of the flexoelectric coefficients in nematic liquid crystals - Download this document for free, or read online. Document in PDF available to download.



Abstract : Within the general framework of Landau-de Gennes theory for nematic liquid crystals it is shown that the difference of flexoelectric coefficients e* = e1 - e3 ∼ S2 , where S is the nematic order parameter. This result agrees with the molecular theory but is in contradiction with recent measurements of the constant e* which yield e* ∼ S. The contradiction can be resolved by the inclusion of conformational freedom into the molecular theory.

Keywords : flexoelectricity nematic liquid crystals organic molecule configurations order parameter flexoelectric coefficients Landau de Gennes theory molecular theory conformational freedom





Author: M.A. Osipov

Source: https://hal.archives-ouvertes.fr/



DOWNLOAD PDF




Related documents