This book describes the current state of theoretical modelling of magnetic properties of crystals, considering the magnetic characteristics of different types of solids on the basis of results of electronic structure calculations. The large number of illustrations and tables provide the reader with a comprehensive picture of the possibilities of contemporary computational methods in the theory of magnetism. For graduate students and solid state scientists.

Inhalt

1. Introduction.- 2. Superexchange Interaction in Magnetic Insulators.- 2.1 Anderson Model of Superexchange.- 2.2 Many-Electron Superexchange.- 2.3 Orbital Degeneracy and Magnetism.- 2.4 Charge-Transfer Magnetic Insulators.- 3. Localized Magnetic Moments of Impurities in Metals.- 3.1 Virtual Bound State.- 3.2 Anderson Model of Localized Magnetic Moments.- 3.3 Interaction of Impurities.- 3.4 Orbital Degeneracy and Quenching of Orbital Moment.- 3.5 Criteria for the Existence of Magnetic Moments Based on Ab Initio Calculations.- 4. Exchange Interactions in Metals.- 4.1 Stoner's Model of Ferromagnetism.- 4.2 Spin-Fluctuation Theories of Itinerant Magnetism.- 4.3 High-Temperature Magnetic Structures of Ferromagnets.- 5. Ab Initio Approaches to the Electronic Structure of Magnetic Crystals.- 5.1 Spin-Density Functional Approach.- 5.2 Band-Structure Approaches in the Green Function Formalism.- 5.3 Magnetic Interactions Within the LSDA.- 6. Results of Band-Structure Calculations for Transition Metals and Their Compounds.- 6.1 Electronic Structure of Magnetic 3d Metals.- 6.2 Intermetallic Compounds and the Concept of Covalent Magnetism.- 6.3 Antiferromagnetic Monoxides.- 6.4 Magnetic Structure and Exchange Interactions in High-Temperature Superconductors.- 7. Magnetic Impurities in Metals.- 7.1 Impurities in Aluminium.- 7.2 Impurities in Transition Metals.- 7.3 Impurities in Magnetic Metals.- 7.4 Interaction of Impurities.- 8. Conclusion.- References.