English

Transport properties of moderately disordered UCu$_4$Pd

Strongly Correlated Electrons 2009-11-11 v1

Abstract

We present a detailed study on the (magneto)transport properties of as-cast and heat treated material UCu4_4Pd. We find a pronounced sample dependence of the resistivity ρ\rho of as-cast samples, and reproduce the annealing dependence of ρ\rho. In our study of the Hall effect we determine a metallic carrier density for all samples, and a temperature dependence of the Hall constant which is inconsistent with the Skew scattering prediction. The magnetoresistive response is very small and characteristic for spin disorder scattering, suggesting that overall the resistivity is controlled mostly by nonmagnetic scattering processes. We discuss possible sources for the temperature and field dependence of the transport properties, in particular with respect to quantum criticality and electronic localization effects.

Keywords

Cite

@article{arxiv.cond-mat/0505418,
  title  = {Transport properties of moderately disordered UCu$_4$Pd},
  author = {A. Otop and S. Süllow and M. B. Maple and A. Weber and E. W. Scheidt and T. J. Gortenmulder and J. A. Mydosh},
  journal= {arXiv preprint arXiv:cond-mat/0505418},
  year   = {2009}
}

Comments

11 pages, 9 figures, submitted PRB