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Giant Magnetotransport Phenomena in Filling-Controlled Kondo Lattice System: La<sub>1-<i>x</i></sub>Sr<sub><i>x</i></sub>MnO<sub>3</sub>

Journal of the Physical Society of Japan · 1994 · Vol. 63(11) · pp. 3931–3935

Yoshinori Tokura✉(The University of Tokyo)A. Urushibara(The University of Tokyo)Yutaka Moritomo(Joint Research Center)T. Arima(The University of Tokyo)A. Asamitsu(Joint Research Center)G. Kido(Institute of Metals Research)Nobuo Furukawa(The University of Tokyo)

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Abstract

Giant magnetotransport phenomena including the field-induced nonmetal-metal transition have been found in single crystals of La 1- x Sr x MnO 3 near the critical composition ( x ≈0.17) for the nonmetal-metal transition and in the temperature region around the magnetic phase transition. Change of the resistivity shows a universal curve as a function of the magnitude of temperature- or field-induced magnetization, the most of which agrees with the prediction by the D =∞ and S =∞ Kondo lattice model with strong ferromagnetic (Hund) coupling.

Magnetic and transport properties of perovskites and related materials Rare-earth and actinide compounds Advanced Condensed Matter PhysicsCondensed matter physicsElectrical resistivity and conductivityFerromagnetismMagnetizationMaterials scienceLattice (music)Kondo effectTransition temperatureMagnetic fieldPhysics

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References

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