55 citations · 113 across the 5 of their papers we have counts for
5 papers
Quantum anisotropic Heisenberg chains with superlattice structure: a DMRG study
J. Silva-Valencia, J. C. Xavier, E. Miranda
Using the density matrix renormalization group technique, we study spin superlattices composed of a repeated pattern of two spin-1/2 XXZ chains with different anisotropy parameters…
Phase Diagram of the Two-Leg Kondo Ladder
J. C. Xavier, E. Miranda, E. Dagotto
The phase diagram of the two-leg Kondo ladder is investigated using computational techniques. Ferromagnetism is present, but only at small conduction electron densities and robust…
Correlation exponent K_rho of the one-dimensional Kondo lattice model
J. C. Xavier, E. Miranda
We present results for the correlation exponent K_rho of the Tomonaga-Luttinger liquid description of the one-dimensional Kondo lattice as a function of conduction electron density…
Small Fermi surface in the one-dimensional Kondo lattice model
J. C. Xavier, E. Novais, E. Miranda
We study the one-dimensional Kondo lattice model through the density matrix renormalization group (DMRG). Our results for the spin correlation function indicate the presence of a s…
Dimerization induced by the RKKY interaction
J. C. Xavier, R. G. Pereira, E. Miranda +1
We report the presence of spin dimerization in the ground state of the one dimensional Kondo lattice model at quarter filling. The emergence of this new phase of the Kondo lattice…