A underscreened Kondo lattice model
✍ Scribed by N.B. Perkins; M.D. Núñez-Regueiro; J.R. Iglesias; B. Coqblin
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 129 KB
- Volume
- 378-380
- Category
- Article
- ISSN
- 0921-4526
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A coexistence between the Kondo effect and the ferromagnetic order has been observed in some Uranium compounds such as UTe or UCu 0.9 Sb 2 , which order ferromagnetically at roughly 100 K and present a Kondo resistivity decrease above it. Recently we have developed the underscreened Kondo lattice (U
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