A S=1 underscreened Kondo lattice model
Abstract
The underscreened Kondo lattice model presented here includes both an intra-site Kondo exchange interaction JK between the conduction band and localized 5f electrons described by S=1 spins, and an inter-site exchange f- f interaction JH. We write both localized and itinerant spins in a Fermionic representation, and then use a mean-field approximation. We obtain a coexistence of Kondo effect and magnetism which can account for the behavior of some Uranium compounds.
- Publication:
-
Physica B Condensed Matter
- Pub Date:
- May 2006
- DOI:
- 10.1016/j.physb.2006.01.226
- Bibcode:
- 2006PhyB..378..698P