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Transport Properties of the Kondo Lattice Model in the Limit $S=\infty$ and $D=\infty$

Nobuo Furukawa
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Abstract

The Kondo lattice model with Hund's ferromagnetic spin coupling is investigated as a microscopic model of the perovskite-type 3d transition-metal oxide La$_{1-x}$Sr$_x$MnO$_3$. In the classical spin limit $S=\infty$ and the infinite-dimensional limit $D=\infty$, the one-body Green's function is calculated exactly. Transport properties of the system in the presence of magnetic fields are calculated. The giant magnetoresistance of this model, which is in a good agreement with the experimental data of La$_{1-x}$Sr$_x$MnO$_3$, is explained by the spin disorder scattering process.

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Nobuo Furukawa. 1994-07-12. Transport Properties of the Kondo Lattice Model in the Limit $S=\infty$ and $D=\infty$. https://doi.org/10.1143/jpsj.63.3214

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