Magnetic Susceptibility and Specific Heat of the Coqblin-Schrieffer Model

Abstract

The exact thermodynamic equations of the Coqblin-Schrieffer model are solved in the scaling regime and the impurity susceptibility and specific-heat curves are obtained as a function of temperature for zero field and for the impurity spin $J=\frac{1}{2},\dots{},\frac{7}{2}$. The strong dependences of the numerical results on the impurity spin are discussed in terms of a noninteracting Fermi-liquid model.