Susceptibilities of the Dense Kondo Ce Compounds

Abstract

Low-temperature magnetic susceptibilities of the dense Kondo Ce compounds such as CeAl₃, CeCu₂Si₂, CeAl₂, CeB₆ are analyzed on the basis of the Coqblin-Schrieffer model with crystal-field splitting from the Yosida theory. It gives an estimate of the Kondo temperature, in good agreement with the quasielastic line width in the neutron experiments. It also gives important information about the crystal-field level structure: in particular, two candidates for the lowest doublet of CeCu₂Si₂ are obtained.