Local Heavy Quasiparticle in Four-Level Kondo Model

Details Local Heavy Quasiparticle in Four-Level Kondo Model Local Heavy Quasiparticle in Four-Level Kondo Model

2005-09-14

arxiv.org/abs/cond-mat/0509353v2

J. Phys. Soc. Jpn. 74 (2005) 3306

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 7 figures. Added references and "Note added"

Scientific paper

10.1143/JPSJ.74.3306

An impurity four-level Kondo model, in which an ion is tunneling among 4-stable points and interacting with surrounding conduction electrons, is investigated using both perturbative and numerical renormalization group methods. The results of numerical renormalization group studies show that it is possible to construct the ground state wavefunction including the excited ion states if we take into account the interaction between the conduction electrons and the ion. The resultant effective mass of quasiparticles is moderately enhanced. This result offers a good explanation for the enhanced and magnetically robust Sommerfeld coefficient observed in SmOs$_4$Sb$_{12}$, some other filled-skutterudites, and clathrate compounds.

Affiliated with

Also associated with

No associations

Rating

Local Heavy Quasiparticle in Four-Level 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 Local Heavy Quasiparticle in Four-Level Kondo Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Local Heavy Quasiparticle in Four-Level Kondo Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-681096