Published November 1998 | Version v1
Journal article

Pd/Cu Site Interchange and Non-Fermi-Liquid Behavior in UCu4Pd

  • 1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  • 2. Department of Physics, University of California, Riverside, California 92521 (United States)
  • 3. Department of Physics, University of California, San Diego, California 92093 (United States)

Description

X-ray-absorption fine-structure measurements of the local structure in UCu4Pd are described which indicate a probable lattice-disorder origin for non-Fermi-liquid behavior in this material. Short Pd-Cu distances are observed, consistent with (24±3)% of the Pd atoms occupying nominally Cu sites. A open-quotes Kondo disorderclose quotes model, based on the effect on the local Kondo temperature TK of this interchange and some additional bond-length disorder, agrees quantitatively with previous experimental susceptibility data, and therefore also with specific heat and magnetic resonance experiments. copyright 1998 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
81
Journal Issue
18
Journal Page Range
p. 3960-3963
ISSN
0031-9007
CODEN
PRLTAO