Scaling theory of the Kondo screening cloud

Details Scaling theory of the Kondo screening cloud Scaling theory of the Kondo screening cloud

1995-11-06

arxiv.org/abs/cond-mat/9511031v2

Physics

Condensed Matter

33 pages + 12 figures in eps format. Uses Revtex3.0 and epsf.sty. RG arguments have been expanded

Scientific paper

10.1103/PhysRevB.53.9153

A scaling form for the local susceptibility, derived from renormalization group arguments, is proposed. The scale over which the uniform part of this scaling form varies can be viewed as a definition of the Kondo ``screening cloud" $\sim \xi_K$. The proposed scaling form interpolates between Ruderman-Kittel-Kasuya-Yosida (RKKY) results in the high temperature limit, $T\gg T_K$, and Fermi liquid results in the low temperature, long-distance limit, $T\ll T_K$, $r\gg \xi_K$. The predicted form of the Knight shift is longer range at low temperatures where the screening cloud has formed, than at high temperatures where it has not. Using weak and strong coupling perturbation theory combined with large scale density matrix renormalization group (DMRG) results we study the validity of the finite size version of the scaling form at $T=0$. We explicitly extract a length scale proportional to the Kondo length scale, $\xi_K$. The numerical results are in good agreement with the proposed scaling form and confirm the existence of the Kondo screening cloud.

Affiliated with

Also associated with

No associations

Rating

Scaling theory of the Kondo screening cloud 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 Scaling theory of the Kondo screening cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling theory of the Kondo screening cloud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-692877