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

We present data for the temperature and magnetic-field dependence of the specific heat, magnetic susceptibility, magnetization, and electrical resistivity of U0.2{Y}0.8Pd₃. 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.