Transport Properties of the Kondo Lattice Model in the Limit S=∞ and D=∞
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概要
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The Kondo lattice model with Hund's ferromagnetic spin coupling is investigated as a microscopic model of the perovskite-type 3d transitionmetal oxide La_<1-x>Sr_xMnO_3. In the classical spin limit S=∞ and the infinite-dimensional limit D=∞, the one-body Green's function is exactly calculated. Transport properties of the system in the presence of magnetic fields are obtained. The giant magnetoresistance of this model, which is in good agreement with the experimental data of La_<1-x>Sr_xMnO_3, is explained by the spin-disorder scattering process.
- 社団法人日本物理学会の論文
- 1994-09-15
著者
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Furukawa Nobuo
Institute for Solid State Physics, University of Tokyo
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Furukawa Nobuo
Institute For Solid State Physics University Of Tokyo
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Furukawa Nobuo
Institute For Sokid State Physics University Of Tokyo
関連論文
- Giant Magnetotransport Phenomena in Filling-Controlled Kondo Lattice System : La_Sr_xMnO_3
- Spin Excitation Spectrum of La_A_xMnO_3
- Temperature Dependence of Conductivity in (La, Sr)MnO_3
- Magnetic Transition Temperature of (La, Sr)MnO_3
- Magnetoresistance of the Double-Exchange Model in Infinite Dimension
- Critical Exponents of the Metal-Insulator Transition in the Two-Dimensional Hubbard Model
- Transport Properties of the Kondo Lattice Model in the Limit S=∞ and D=∞
- Impurity Effect on Spin Ladder System
- Two-Dimensional Hubbard Model : Metal Insulator Transition Studied by Monte Carl Calculation
- Charge Mass Singularity in Two-Dimensional Hubbard Model
- Crossover of Spin Correlations in the One-Dimensional Hubbard Model
- Optimization of Intitial State Vector in the Ground State Algorithm of Lattice Fermion Simulations
- Anomalous Shift of Chemical Potential in the Double-Exchange Systems
- Charge Gap,Charge Susceptibility and Spin Correlation in the Hubbard Model on a Square Lattice
- Fixed Point of the Spin-Fermion Model Doped with a Single Fermion