| Extension of Maier--Meier Model on Cholesteric Liquid Crystals |
| J. Hoffmann Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland |
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| Received: March 16, 2004 |
| Based on the Maier--Meier theory, a model is proposed in which the electric permittivity values of the cholesteric liquid crystals can be linked to their molecular parameters (μ -- dipole moment, α -- polarizability). To accomplish this project there were defined the transformation principles from the liquid crystal structure frame to the molecular frame, and a method for rendering the single molecule parameters (μ, α) into a set of averaged quantities of the macroscopic ensemble was offered. This model was used to calculate a dipole moment and polarizability for two liquid crystalline materials from electric permittivity measurements. The results are compared with the data obtained from MP3 calculations. |
| DOI: 10.12693/APhysPolA.105.373 PACS numbers: 61.30.Eb |