Abstract
We study the large-N limit of the Coqblin-Schrieffer model in a nonzero magnetic field at zero temperature. We show that at N= the model exhibits an unphysical singularity in the magnetization curve when the field lifts the degeneracy completely. However, if the spin degeneracy is lifted, leaving a large orbital degeneracy untouched, a smooth Kondo crossover is recovered.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 8172-8175 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 34 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1986 |
ASJC Scopus subject areas
- Condensed Matter Physics