The spin and charge gaps of the half-filled N-leg Kondo ladders

Abstract

In this work, we study N-leg Kondo ladders at half-filling through the density matrix renormalization group. We found non-zero spin and charge gaps for any finite number of legs and Kondo coupling $J>0$. We also show evidence of the existence of a quantum critical point in the two dimensional Kondo lattice model, in agreement with previous works. Based on the binding energy of two holes, we did not find evidence of superconductivity in the 2D Kondo lattice model close to half-filling.

4 pages, 1 table, 3 figs

References in corpus (1)

• Dimerization induced by the RKKY interaction

Cited by in corpus (6)

• Robust d-wave Pairing Correlations in the Heisenberg Kondo Lattice Model
• The N-Leg spin-S Heisenberg ladders: A DMRG study
• Absence of a true long-range orbital order in a two-leg Kondo ladder
• Frustrated quantum magnetism in the Kondo lattice on the zigzag ladder
• Coexistence of Pairing Tendencies and Ferromagnetism in a Doped Two-Orbital Hubbard Model on Two-Leg Ladders
• Phase Diagram of the Two-Leg Kondo Ladder