Abstract
We show a strong indication of the existence of a large Fermi surface in the one-dimensional Kondo-lattice model. The characteristic wave vector of the model is found to be (Formula presented)=(1+ρ)π/2, ρ being the density of the conduction electrons. This result is at first obtained for a variant of the model that includes an antiferromagnetic Heisenberg interaction (Formula presented) between the local moments. It is then directly observed in the conventional Kondo lattice ((Formula presented)=0), in the narrow range of Kondo couplings where the long distance properties of the model are numerically accessible.
Original language | English |
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Pages (from-to) | 12212-12215 |
Number of pages | 4 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 54 |
Issue number | 17 |
DOIs | |
State | Published - 1 Jan 1996 |
Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics