%0 Journal Article
%T Phase Diagram of the 1D Kondo Lattice Model
%A I. P. McCulloch
%A M. Gulacsi
%A S. Caprara
%A A. Juozapavicius
%J Physics
%D 1999
%I arXiv
%X We determine the boundary of the fully polarized ferromagnetic ground state in the one dimensional Kondo lattice model at partial conduction electron band filling by using a newly developed infinite size DMRG method which conserves the total spin quantum number. The obtained paramagnetic to ferromagnetic phase boundary is below $J \approx 3.5$ for the whole range of band filling. By this we solve the controversy in the phase diagram over the extent of the ferromagnetic region close to half filling.
%U http://arxiv.org/abs/cond-mat/9908414v1