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CONTENTS
Chapter 7. Itinerant-Electron Magnetism
63

7.1. Introduction
63

7.2. Susceptibility Enhancement
65

7.3. Strong and Weak Ferromagnetism
66

7.4. Intersublattice Coupling in Alloys of Rare Earths and 3d Metals
70

References
73

Chapter 8. Some Basic Concepts and Units
75

References
83

Chapter 9. Measurement Techniques
85

9.1. The Susceptibility Balance
85

9.2. The Faraday Method
86

9.3. The Vibrating-Sample Magnetometer
87

9.4. The SQUID Magnetometer
89

References
89

Chapter 10. Caloric Effects in Magnetic Materials
91

10.1. The Specific-Heat Anomaly
91

10.2. The Magnetocaloric Effect
93

References
95

Chapter 11. Magnetic Anisotropy
97

References
102

Chapter 12. Permanent Magnets
105

12.1. Introduction
105

12.2. Suitability Criteria
106

12.3. Domains and Domain Walls
109

12.4. Coercivity Mechanisms
112

12.5. Magnetic Anisotropy and Exchange Coupling in Permanent-Magnet

Materials Based on Rare-Earth Compounds
115

12.6. Manufacturing Technologies of Rare-Earth-Based Magnets
119

12.7. Hard Ferrites
122

12.8. Alnico Magnets
124

References
128

Chapter 13. High-Density Recording Materials
131

13.1. Introduction
131

13.2. Magneto-Optical Recording Materials
133

13.3. Materials for High-Density Magnetic Recording
139

References
145