Magnetic and Transport Properties of the Kondo Lattice Model with Ferromagnetic Exchange Coupling

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dc.creatorFurukawa, Nobuo
dc.date1995-05-03
dc.date1995-05-05
dc.date.accessioned2026-07-07T08:58:54Z
dc.date.available2026-07-07T08:58:54Z
dc.descriptionThe Kondo lattice model with Hund's ferromagnetic spin coupling is investigated as a microscopic model of the perovskite-type $3d$ manganese oxide (R,A)MnO$_3$ where $R$ and $A$ are rare earth element and alkaline earth element, respectively. We take the classical spin limit $S=\infty$ for the simplicity of the calculation, since the quantum exchange process seems to be irrelevant in the high temperature paramagnetic phase. Magnetic and transport properties of the system are calculated. In the hole doped systems, ferromagnetic instabilities are observed as the temperature is lowered. The giant magnetoresistance of this model is in excellent agreement with the experimental data of (La,Sr)MnO$_3$.
dc.descriptionto be published in Proc. 17th Taniguchi International Conference on "Spectroscopy of Mott Insulators and Correlated Metals", 7 pages, 3 PS files appended at the end, LaTeX
dc.identifierhttps://arxiv.org/abs/cond-mat/9505011
dc.identifierhttp://arxiv.org/abs/cond-mat/9505011
dc.identifierSpringer Series in Solid-State Sciences 119
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/147510
dc.subjectCondensed Matter
dc.titleMagnetic and Transport Properties of the Kondo Lattice Model with Ferromagnetic Exchange Coupling
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