Document Type
Article
Publication Date
11-15-1992
Abstract
The longitudinal dielectric susceptibility of a polar (directed) thermotropic main-chain nematic polymer is derived in the mean-field approximation, accounting for long-range interaction forces and the local-field effects in the media. It is shown that this susceptibility exponentially increases for some range of orientational order and then either diverges or saturates at some characteristic degree of order. This is expected in some circumstances to result in a true ferroelectric phase. A simple calculation of this transition is given, assuming that long-range dipolar interactions are the only relevant polar interactions. Other relevant effects and the limitations of our approximation are discussed briefly.
Publication Title
Physical Review A
Rights
© 1992 The American Physical Society.
Recommended Citation
Dielectric Properties and Ferroelectricity in Main-Chain Nematic Polymers. Terentjev E., Petschek R.G., Physical Review A 46:10, 6564-6567(1992).