Kondo lattice model are studied. We calculate their dependence on the control parameters
given by local exchange coupling JK and Coulomb repulsion U. Exact diagonalization (ED)
approach for ground state properties as well as finite temperature Lanczos method (FTLM)
for the uniform susceptibility are employed for small tiles on the square lattice. The
competition of on-site screening and induced inter-site correlations leads to non-monotonic …