Non Fermi Liquid behavior in the under-screened Kondo model

Details Non Fermi Liquid behavior in the under-screened Kondo model Non Fermi Liquid behavior in the under-screened Kondo model

2003-02-03

arxiv.org/abs/cond-mat/0302001v4

Physical Review B 68 220405 (2003) RC.

Physics

Condensed Matter

References corrected. Minor changes to text

Scientific paper

10.1103/PhysRevB.68.220405

Using the Schwinger boson spin representation, we reveal a new aspect to the physics of a partially screened magnetic moment in a metal, as described by the spin $S$ Kondo model. We show that the residual ferromagnetic interaction between a partially screened spin and the electron sea destabilizes the Landau Fermi liquid, forming a singular Fermi liquid with a $1/ (T \ln ^{4} (T_{K}/T))$ divergence in the low temperature specific heat coefficient $C_{V}/T$. A magnetic field $B$ tunes this system back into Landau Fermi liquid with a Fermi temperature proportional to $B \ln^2 (T_K/B)$. We discuss a possible link with field-tuned quantum criticality in heavy electron materials.

Affiliated with

Also associated with

No associations

Rating

Non Fermi Liquid behavior in the under-screened Kondo 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 Non Fermi Liquid behavior in the under-screened Kondo model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non Fermi Liquid behavior in the under-screened Kondo model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-350033