Magnetism V1

Contributors to Volume I Preface Contents of Volume II Contents of Volume III 1. Spin Hamiltonians I. Introduction II. The Magnet Lattice III. The Spin Hamiltonians IV. Crystal Field Theory V. Nuclear Hyperfine Structure VI. Pairs of Ions VII. The Rare Earths VIII. Final Remarks References 2. Exchange in Insulators: Superexchange, Direct Exchange, and Double Exchange I. Introduction II. Origin of Superexchange III. Direct Exchange and Other Exchange Effects IV. The Isolated Magnetic Ion: Ligand Fields and Information from Nuclear Resonance V. Semiempirical Approaches and Theoretical Calculations VI. Double Exchange Acknowledgments References 3. Weak Ferromagnetism I. Introduction II. Anisotropic Spin Couplings as Origins of Weak Ferromagnetism III. Magnetic Susceptibility above the Transition Point IV. Classical Theory of the Spin Arrangement V. Behavior near the Transition Point VI. Spin Waves VII. Magnetic Resonance VIII. Domains and Domain Walls IX. Piezomagnetism and Magnetoelectric Effect X. Concluding Remarks Note Added in Proof References 4. Anisotropy and Magnetostriction of Ferromagnetic and Antiferromagnetic Materials I. Introduction II. Phenomenological Aspects of Magnetic Anisotropy and Experimental Methods III. Microscopic Origins of Anisotropy Energy IV. Discussions of Representative Substances V. Magnetostriction References 5. Magnetic Annealing I. Introduction II. General Theory III. Monatomic Directional Ordering IV. Diatomic Directional Ordering V. Magnetoelastic Effects References 6. Optical Spectra in Magnetically Ordered Materials I. Introduction II. Optical Spectrum of an Atom Pair III. Splitting of Paramagnetic Lines IV. Appearance of Satellite Lines V. Future Problems References 7. Optical and Infrared Properties of Magnetic Materials I. Introduction II. General Considerations III. Exchange Effects: Single-Ion Levels IV. Dispersive Effects V. Exchange Resonance VI. Summary References 8. Spin Waves and Other Magnetic Modes Introduction I. Linear Microscopic Theory II. Phenomenological Theory III. Extensions of the Linear Theory References 9. Antiferromagnetic and Ferrimagnetic Resonance I. Introduction II. Static Susceptibility of Uniaxial Antiferromagnet III. Antiferromagnetic Resonance Theory IV. Antiferromagnetic Resonance Experiments V. Ferrimagnetic Resonance Theory VI. Ferrimagnetic Resonance Experiments VII. Special Topics VIII. High Magnetic Fields References 10. Ferromagnetic Relaxation, and Resonance Line Widths I. Ferromagnetic Relaxation II. The Nondissipative Response: Resonance Frequency III. Other Experimental Methods IV. Dynamical Equations V. General Classification of Relaxation Processes VI. The Two-Magnon Decay of the Homogeneous Mode VII. The Three-Magnon Decay of the Homogeneous Mode VIII. The Four-Magnon Decay of the Homogeneous Mode IX. Two-Magnon Interaction (k, k' ¿ 0) X. Three-Magnon Equilibration Processes XI. Four-Magnon Equilibration Processes XII. Magnon-Phonon Scattering XIII. Magnon-Conduction Electron Relaxation Mechanisms References 11. Ferromagnetic Resonance at High Power I. Introduction II. Classical Nonlinear Behavior III. Spin Wave Excitation IV.