ELECTRICAL-RESISTIVITY AND THERMOPOWER STUDIES OF CE(RH1-XRUX)(2)SI-2 COMPOUNDS WITH 0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.4

Electrical resistivity (rho) and thermopower (S) measurements have been performed in the temperature range 3.5-300 K on both LaRh2Si2 and the heavy fermion compounds Ce(Rh1-xRux)(2)Si-2. The rho(T) and S(T) curves for LaRh2Si2 reveal that the thermopower and electrical resistivity in the Ce(Rh1-xRux)(2)Si-2 compounds essentially reflect the rather anomalous scattering arising from the Ce ions. The thermal dependences of rho and S in these compounds are compared with those observed in other heavy fermion compounds. The thermopower is analysed with an expression deduced by Gotwick et al. assuming a lorentzian form for the resonance density of states.