Phase diagram of the one-dimensional, two-channel Kondo lattice model

Details Phase diagram of the one-dimensional, two-channel Kondo lattice model Phase diagram of the one-dimensional, two-channel Kondo lattice model

2005-01-18

arxiv.org/abs/cond-mat/0501430v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures, RevTeX 4

Scientific paper

Employing the density matrix renormalization group method and strong-coupling perturbation theory, we study the phase diagram of the SU(2)xSU(2) Kondo lattice model in one dimension. We show that, at quarter filling, the system can exist in two phases depending on the coupling strength. The weak-coupling phase is dominated by RKKY exchange correlations while the strong-coupling phase is characterized by strong antiferromagnetic correlations of the channel degree of freedom. These two phases are separated by a quantum critical point. For conduction-band fillings of less than one quarter, we find a paramagnetic metallic phase at weak coupling and a ferromagnetic phase at moderate to strong coupling.

Affiliated with

Also associated with

No associations

Rating

Phase diagram of the one-dimensional, two-channel Kondo lattice model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Phase diagram of the one-dimensional, two-channel Kondo lattice model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase diagram of the one-dimensional, two-channel Kondo lattice model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-705142