We once more specify an universality of a phase transition from smectic-A to nematic phase in the crosslinked polymer network with a smectic liquid crystal, basing on the X-ray and 1H-NMR spectroscopy experiments. Comparing the superconducting 3D XY gauge theory and typical spin-glass models for such systems, it is possible to clarify a type of a phase transition, which might be the reason of percolation.
@article{arxiv.0903.5023,
title = {The Polyakov line, the Nishimori line and polymer networks standing a smectic liquid crystal},
author = {L. V. Elnikova},
journal= {arXiv preprint arXiv:0903.5023},
year = {2010}
}