Document Type
Article
Publication Date
6-1-1993
Abstract
A molecular-statistical model for the second-order flexoelectric effect in chiral nematics is developed, accounting for additional chiral terms in the pair intermolecular potential U(1,2). It is shown by symmetry analysis, that there are four independent chiral terms in the flexoelectric polarization, proportional to the square of director gradients, ℘∼λ∇ n∇n. A molecular-statistical theory is developed for the second-order chiral flexoelectric constants λ. Their values, obtained in the mean-field approximation, depend on molecular dimensions, interaction parameters, and the degree of molecular chirality. Possible experimental situations are discussed where this effect can be observed.
Publication Title
The Journal of Chemical Physics
Rights
© 1993 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in the Journal of Chemical Physics 98:11, 9199-9207 and may be found at http://link.aip.org/link/doi/10.1063/1.464427
Recommended Citation
D. W. Cronin, R. G. Petschek, E. M. Terentjev; Second‐order flexoelectric effect in chiral nematic liquid crystals. J. Chem. Phys. 1 June 1993; 98 (11): 9199–9207. https://doi.org/10.1063/1.464427