Static magnetic susceptibility of the systems with anisotropic kondo interaction

Abstract

© Springer-Verlag Wien 2014. We theoretically investigated the static magnetic susceptibility in the heavy fermion compounds YbRh2Si2 and YbIr2Si2. The molecular field approximation together with the renormalization of the Kondo interaction by the highenergy conduction electron excitations results in the Curie–Weiss law and Van Vleck susceptibility with temperature-dependent Curie and Weiss parameters.