THERMOELECTRIC-POWER OF CE-BASED KONDO ALLOYS

The Kondo lattice compounds CePdSn, CePdGa and CePtGa display pronounc ed anomalies in thermopower as a function of temperature, with a chara cteristic inverted tilda (approximately) shape. We have attempted to c orrelate these anomalies with the dynamical susceptibility derived fro m inelastic neutron scattering. The TEP of CePdSb has a large positive slope, while that of CeRhSb shows a large peak at 20 K, signalling th e onset of the Kondo insulator state.