Magnetism in Heavy-Electron Liquids
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概要
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One of the most characteristic features of heavy-electron liquids is interplay between local and intersite spin fluctuations. Recent developments in including both spin fluctuations are reviewed. Local spin fluctuations, which are responsible for the formation of heavy electrons, are completely included in the single-site approximation (SSA). The SSA is reduced to solving the Anderson model selfconsistently. Intersite spin fluctuations are perturbatively included. Such a perturbative scheme is nothing but the 1/d expansion from the d=+∞ dimension. The mean-field approximation based on the SSA is rigorous for d =+∞. Applications of the 1/d expansion to paramagnons, metamagnetism, tiny-moment magnetism, and other topics are presented.
- 理論物理学刊行会の論文
- 1992-06-30
著者
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Fusayoshi J.ohkawa
Department Of Physics Hokkaido University
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Ohkawa Fusayoshi
Department Of Physics Faculty Of Science University Of Tokyo
関連論文
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- Electron Correlation in the Hubbard Model in d=∞ Dimension
- Auxiliary-Particle Theory of Strongly Correlated Systems
- Competition between Kondo Effect and RKKY Exchange Interaction in Kondo Lattices
- Anisotropic Superconductivity in Highly Disordered Systems
- Strong-Coupling Superconductivity in the Cuprate Oxide
- Sinusoidal and Helical Structures in Tiny-Moment Magnets
- Interband Effects in High-T_c Oxide Superconductors
- Positive Magnetoresistance of Kondo Lattices
- Effects of Magnetic Frustrations on dγ-Symmetry Cooper Pairs in Simple Square Lattices
- Fermi Liquid Theory in Ceramic High-T_c Superconductors
- Quantized Surface States of a Narrow-Gap Semiconductor
- Hartree Approximation for the Electronic Structure of a p-Channel Inversion Layer of Silicon M.O.S. (Selected Topics in Semiconductor Physics) -- (Surface)
- Effects of Localization on Kondo Effect
- Phonon-Mediated Attractive Interaction between Adjacent f Electrons in Heavy-Electron Superconductors
- Superconductivity in the Hubbard Model
- Magnetism in Heavy-Electron Liquids
- Second Superconducting Transition Driven by Charge Density Wave
- Electron Correlation in the Hubbard Model in d=+∞ dimension : Heavy Electrons in the Mott-Transition Region
- Theory of Superconductivity in Strongly Correlated Systems: Auxiliary Boson-Fermion Formulation
- Anisotropie Cooper Pairs in High-T_c Superconductors