Absence of a true long-range orbital order in a two-leg Kondo ladder

Abstract

We investigate, through the density-matrix renormalization group and the Lanczos technique, the possibility of a two-leg Kondo ladder present an incommensurate orbital order. Our results indicate a staggered short-range orbital order at half-filling. Away from half-filling our data are consistent with an incommensurate quasi-long-range orbital order. We also observed that an interaction between the localized spins enhances the rung-rung current correlations.

7 pages, 6 figures, changed the introduction and added some discussions

References in corpus (5)

• Broken time-reversal symmetry in strongly correlated ladder structures
• Dimerization induced by the RKKY interaction
• Itinerancy and Hidden Order in $UR{u}_{2}S{i}_2$
• Orbital currents and charge density waves in a generalized Hubbard ladder
• Phase Diagram of the Two-Leg Kondo Ladder

Cited by in corpus (1)

• Robust d-wave Pairing Correlations in the Heisenberg Kondo Lattice Model