THERMAL-CONDUCTIVITY OF INTERMETALLIC COMPOUND NDNI

The temperature dependence of thermal conductivity and electrical resi stivity was measured for the polycrystalline ferromagnetic compound Nd Ni and nonmagnetic LaNi in the temperature region from 2 to 40 K. Anom alies were observed in the temperature dependence of thermal conductiv ity, electrical resistivity and Lorenz number of NdNi at 14 and 27 K d ue to the magnetic scattering process. Assuming the validity of the Wi edemann-Franz law, we have tried to separate the electron and phonon c omponents of thermal conductivity of nonmagnetic compound LaNi. (C) 19 98 Elsevier Science B.V. All rights reserved.