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Magnons in the ferromagnetic Kondo-lattice model

M. Vogt·C. Santos·W. Nolting
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Abstract

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 between the localised moments and the conduction electrons. From the properties of the spin-wave stiffness $D$ the ferromagnetic phase at zero temperature is derived. Using an approximate formula the critical temperature $T_c$ is calculated as a function of $J$ and $n$.

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M. Vogt, C. Santos, W. Nolting. 2000-12-06. Magnons in the ferromagnetic Kondo-lattice model. https://doi.org/10.1002/1521-3951(200102)223%3A3%3C679%3A%3Aaid-pssb679%3E3.0.co%3B2-p

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