We point out that a recent model for the heat capacity of alpha-U that invokes CDW collective modes is unphysical. We show instead that the features in the heat capacity of both single-crystal and polycrystalline alpha-U can be accounted for by a number of Peierls transitions that are subject to increased disorder in the polycrystalline sample.
@article{arxiv.cond-mat/0611331,
title = {Dirty Peierls transitions in alpha-Uranium},
author = {S. Cox and E. Rosten and R. D. McDonald and J. Singleton},
journal= {arXiv preprint arXiv:cond-mat/0611331},
year = {2007}
}