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Changes in non-Fermi liquid behavior with annealing due to lattice disorder in UCu_4Pd

C. H. Booth·E. -W. Scheidt·U. Killer·A. Weber·S. Kehrein
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Abstract

The magnetic and electronic properties of non-Fermi liquid UCu_4Pd depend on annealing conditions. Local structural changes due to this annealing are reported from U L_III- and Pd K-edge x-ray absorption fine-structure measurements. In particular, annealing decreases the fraction of Pd atoms on nominally Cu 16e sites and the U-Cu pair-distance distribution width. This study provides quantitative information on the amount of disorder in UCu_4Pd and allows an assessment of its possible importance to the observed non-Fermi liquid behavior.

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C. H. Booth, E. -W. Scheidt, U. Killer, A. Weber, S. Kehrein. 2002-10-11. Changes in non-Fermi liquid behavior with annealing due to lattice disorder in UCu_4Pd. https://arxiv.org/abs/cond-mat/0210275

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