Electron Correlation and Magnetism in Narrow-Band Systems

I. d Metals and Compounds - Finite Temperature Properties.- Spin Fluctuations and a Unified Picture of Magnetism.- Calculation of the Magnetic Properties of Iron and Nickel by the Functional Integral Method.- A Spin Fluctuation Theory of Itinerant-Electron Systems - The Single-Site Approximation.- Comments on Weakly and Nearly Ferromagnetic Metals.- Ferromagnetism in Iron and Nickel.- Short-Range Magnetic Order in Iron and Nickel.- Effective Spin Fluctuation Energies: How Should They Be Calculated? What Do They Mean?.- Functional Integral Representations in Spin Fluctuation Theory: Is There a Right One?.- The Magnetism of bcc Iron.- Thermal Expansion Due to Magneto-Volume Effect in Ferromagnetic Metals.- Functional Integral Approach to the Low-Temperature Properties of Itinerant Ferromagnets.- II. d Metals and Compounds - Ground-State Properties.- The Screening of Excess d Holes by s and p Electrons in Nickel.- The Ground State of fcc Nickel-Base Ferromagnetic Disordered Alloys.- Many-Body Effect on the Ferromagnetism in Transition Metals.- Electronic Band Structure and Helical Spin Density Wave of MnSi.- III. Some Theoretical Aspects of Narrow-Band Problems.- Stoner and Kondo Spin Glasses.- Itinerant Magnetism Approach for Understanding One-Dimensional Antiferromagnets.- Magnetic Susceptibility of the Strongly Correlated Hubbard Model.- Electron Correlation in the Small Hubbard Model.- IV. Mixed Valence in 4f Compounds.- Dynamics of 4f Electrons in Mixed Valence Compounds.- Effect of Strong Correlation on a Mixed Valence System.- Ground State of the Periodic Anderson Hamiltonian.- f Bands in Lanthanium Compounds.- Valence Fluctuating States in Ce Compounds: Survey of Our Group Work.- Index of Contributors.