The anisotropic resistivity of PrBa2Cu4O8 has been measured as a function of electron irradiation fluence. Localization effects are observed for extremely small amounts of disorder corresponding to electron mean-free-paths of order 100 unit cells. Estimates of the localization corrections suggest that this anomalous localization threshold heralds a crossover to a ground state with pronounced one-dimensional character in which conduction electrons become confined to a small cluster of chains.
@article{arxiv.0709.3800,
title = {Irradiation-induced confinement in a quasi-one-dimensional metal},
author = {A. Enayati-Rad and A. Narduzzo and F. Rullier-Albenque and S. Horii and N. E. Hussey},
journal= {arXiv preprint arXiv:0709.3800},
year = {2007}
}