https://doi.org/10.1140/epjb/e2004-00235-5
The anisotropic multichannel spin-S Kondo model: Calculation of scales from a novel exact solution
Bergische Universität Wuppertal, Fachbereich Physik, 42097 Wuppertal, Germany
Corresponding author: a bortz@physik.uni-wuppertal.de
Received:
4
May
2004
Revised:
9
June
2004
Published online:
3
August
2004
A novel exact solution of the multichannel spin-S Kondo model is presented, based on a lattice path integral approach of the single channel spin-1/2 case. The spin exchange between the localized moment and the host is of XXZ-type, including the isotropic XXX limit. The free energy is given by a finite set of non-linear integral equations, which allow for an accurate determination of high- and low-temperature scales.
PACS: 72.15.Qm – Scattering mechanisms and Kondo effect / 04.20.Jb – Exact solutions / 75.20.Hr – Local moment in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions / 75.10.Lp – Band and itinerant models
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004
