Temperature and field dependence of the thermodynamic and transport properties of Ce3Bi4Pt3

We have calculated the temperature and held dependence of various thermodynamic and transport properties for the insulating phase of the Anderson lattice Hamiltonian using a slave boson approach. The conduction band was assumed to be a tight binding cubic s-band. The transport properties were calculated assuming impurity scattering and using a relaxation time approximation. Many-body effects due to the on-site f electron Coulomb repulsion are shown to be crucial in describing the mixed valence nature and the different energy scales observed in Ce3Bi4Pt3. The calculated electrical conductivity and thermopower agree with experiment but the Hall constant does not. We present predictions for the thermal conductivity and the thermoelectric figure of merit as a function of temperature. We predict that under a magnetic field H-c similar or equal to 90 T the system undergoes a transition from an insulator to a metal with a finite magnetic susceptibility and specific heat (sic).