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Spin dynamics in the generalized ferromagnetic Kondo model for manganites

N. B. Perkins·N. M. Plakida
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Abstract

Dynamical spin susceptibility is calculated for the generalized ferromagnetic Kondo model which describes itinerant $e_{g}$ electrons interacting with localized $t_{2g}$ electrons with antiferromagnetic coupling. The calculations done in the mean field approximation show that the spin-wave spectrum of the system in ferromagnetic state has two branches, acoustic and optic ones. Self-energy corrections to the spectrum are considered and the acoustic spin-wave damping is evaluated.

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N. B. Perkins, N. M. Plakida. 1999-01-14. Spin dynamics in the generalized ferromagnetic Kondo model for manganites. https://doi.org/10.1007/bf02557242

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