Ferromagnetic ground state in the Kondo lattice model
β Scribed by S.-Q. Shen
- Book ID
- 118790718
- Publisher
- Springer
- Year
- 1998
- Tongue
- English
- Weight
- 412 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1434-6036
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π SIMILAR VOLUMES
The magnetic properties of the ferromagnetic Kondo-lattice model (FKLM) are investigated. Starting from an analysis of the magnon spectrum in the spin-wave regime, we examine the ferromagnetic stability as a function of the occupation of the conduction band n and the strength J of the coupling betwe
The one-dimensional Kondo lattice is diagonalized numerically. It is shown that the ground state is ferromagnetic at low densities of conduction electrons. On the other hand at half-filling the ground state is a singlet with stronq antiferromagnetic correlations which are localized spins.