A large-N analysis of the local quantum critical point and the spin-liquid phase

Details A large-N analysis of the local quantum critical point and the spin-liquid phase A large-N analysis of the local quantum critical point and the spin-liquid phase

2002-06-11

arxiv.org/abs/cond-mat/0206174v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages and 1 figure

Scientific paper

10.1103/PhysRevB.67.121104

We study analytically the Kondo lattice model with an additional nearest-neighbor antiferromagnetic interaction in the framework of large-N theory. We find that there is a local quantum critical point between two phases, a normal Fermi-liquid and a spin-liquid in which the spins are decoupled from the conduction electrons. The local spin susceptibility displays a power-law divergence throughout the spin liquid phase. We check the reliability of the large-N results by solving by quantum Monte Carlo simulation the N=2 spin-liquid problem with no conduction electrons and find qualitative agreement. We show that the spin-liquid phase is unstable at low temperatures, suggestive of a first-order transition to an ordered phase.

Affiliated with

Also associated with

No associations

Rating

A large-N analysis of the local quantum critical point and the spin-liquid phase 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 A large-N analysis of the local quantum critical point and the spin-liquid phase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A large-N analysis of the local quantum critical point and the spin-liquid phase will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-517745