Transport properties of moderately disordered UCu4Pd

Otop, A.; Süllow, S.; Maple, M. B.; Weber, A.; Scheidt, E. W.; Gortenmulder, T. J.; Mydosh, J. A.

doi:10.1103/PhysRevB.72.024457

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Transport properties of moderately disordered UCu₄Pd

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Süllow, S.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Mydosh, J. A.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Otop, A., Süllow, S., Maple, M. B., Weber, A., Scheidt, E. W., Gortenmulder, T. J., et al. (2005). Transport properties of moderately disordered UCu₄Pd. Physical Review B, 72: 024457, pp. 024457-1-024457-9. doi:10.1103/PhysRevB.72.024457.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-2CBB-D

Abstract

We present a detailed study on the (magneto)transport properties of as-cast and heat treated material UCu4Pd. We find a pronounced sample dependence of the resistivity ρ of as-cast samples, and reproduce the annealing dependence of ρ. 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.