Crystal fields and Kondo effect: Specific heat for Cerium compounds

The thermodynamic Bethe ansatz equations for the N=6 Coqblin-Schrieffer model with crystal fields have been solved numerically. The realistic case of three Kramers doublets with arbitrary splittings has been studied for the first time. The specific heat has been calculated for representative combinations of the ionic energy splittings providing ample material for comparison with experimental results for Cerium impurities and compounds.