Abstract
We investigate elastic interactionsin nematic elastomers and gels using a Ginzburg-Landau model for the isotropic-nematic transition.We propose an elastic origin of the "four-leaf clover” pattern observed in depolarised light scattering from polydomain nematic elastomers.We also investigate the director fluctuation in the nematic phase.Aligned nematic states are found to be unstable below a critical elongation.
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