Observation of non-Fermi-liquid behavior in U0.2Y0.8Pd3

B. Andraka and A. M. Tsvelik
Phys. Rev. Lett. 67, 2886 – Published 11 November 1991
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Abstract

We present data for the temperature and magnetic-field dependence of the specific heat, magnetic susceptibility, magnetization, and electrical resistivity of U0.2Y0.8Pd3. The data demonstrate the scaling behavior of the thermodynamic quantities at temperatures up to 10 K and magnetic fields up to 14 T. The magnetic field scales as T1.3. The zero-field specific heat varies with temperature as -T lnT. The magnetic field strongly affects the thermodynamics, but the magnetoresistance is very small (-2% at T=0.36 K and H=14 T). We argue that our data are inconsistent with any single-impurity interpretation. We suggest that the system has a second-order phase transition at T=0.

  • Received 19 July 1991

DOI:https://doi.org/10.1103/PhysRevLett.67.2886

©1991 American Physical Society

Authors & Affiliations

B. Andraka and A. M. Tsvelik

  • Department of Physics, University of Florida, Gainesville, Florida 32611

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Vol. 67, Iss. 20 — 11 November 1991

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