Ground-state properties of the One-dimensional Kondo Lattice at partial Band-filling

Details Ground-state properties of the One-dimensional Kondo Lattice at partial Band-filling Ground-state properties of the One-dimensional Kondo Lattice at partial Band-filling

1995-10-16

arxiv.org/abs/cond-mat/9510087v1

Physics

Condensed Matter

8 pages, Latex, 5 figures included, to be published in PRB (Rapid Communications)

Scientific paper

10.1103/PhysRevB.52.R15723

We compute the magnetic structure factor, the singlet correlation function and the momentum distribution of the one-dimensional Kondo lattice model at the density $\rho =0.7$. The density matrix-renormalization group method is used. We show that in the weak-coupling regime, the ground state is paramagnetic. We argue that a Luttinger liquid description of the model in this region is consistent with our calculations . In the strong-coupling regime, the ground state becomes ferromagnetic. The conduction electrons show a spinless-fermion like behavior.

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