In addition to an extensive introduction to the basic principles of magnetism relevant to all magnetic materials (Chapters I-IV), Professor Chen (Lawrence Livermore National Laboratory) devotes the core of the book to a rigorous, detailed discussion of the effects of metallurgical factors such as purity, alloying, grain structure, defects, and atomic order on the properties and performance of magnetic metals, alloys, and compounds. An extensive and important chapter on the special topics of magnetic bubbles and radiation effects rounds out this timely and wide-ranging survey of a crucial topic in solid state physics.
Written for materials scientists, experimental physicists, and metallurgists, the book also lends itself to use as a textbook for graduate courses in magnetic materials.
Inhalt
PREFACE
ACKNOWLEDGEMENTS
LIST OF MOST IMPORTANT SYMBOLS
CONTENTS
CHAPTER 1. INTRODUCTION
1. Historical
2. Units
3. Fundamental quantities of magnetism
3.1. Magnetic poles
3.2. Magnetic dipole and magnetic moment µ
3.3. Magnetic field H
3.4. Magnetization M and magnetic induction B
3.5. Susceptibility x and permeability µ
4. Various kinds of magnetism
CHAPTER 2. FERROMAGNETISM AND FERRIMAGNETISM
1. Magnetic moments of electrons and atoms
2. The Weiss molecular field and theories of ferromagnetism
3. Ferrimagnetism
CHAPTER 3. MAGNETIZATION AND DOMAIN STRUCTURE
1. The magnetization curve
2. Ferromagnetic domains and magnetization processes
3. Magnetocrystalline anisotropy
4. Magnetostriction
5. The Bloch wall and domain structure
CHAPTER 4. MAGNETIC PROPERTIES
1. Intrinsic properties
1.1. Saturation magnetization
1.2. The Curie temperature
2. Structure-sensitive properties
2.1 Static properties
2.1.1. Induction and approach to saturation
2.1.2. Permeabilities
2.1.3. Hysteresis loop and energy loss
2.1.4. Coercive force and coercivity
2.1.5. Remanence and retentivity
2.2 Dynamic properties
2.2.1. Eddy currents and anomalous energy losses
2.2.2. Motion and resonance of domain walls
2.2.3. Resonance of spins
CHAPTER 5. METALLURGY OF SOFT MAGNETIC MATERIALS
1. Technical materials
1.1. Pure metals
1.2. Alloys
1.3. Ferrites and other magnetic compounds
1.3.1 Ferrites
1.3.2. Europium chalcogenides
2. The effect of metallurgical factors on properties of soft magnetic materials
2.1. Purity
2.2. Alloying
2.3. Crystal defects
2.4. Recovery and recrystallization; texture
2.5. Atomic order
2.6 "Magnetic anneal, plastic deformation and allotropic transformation related to induced magnetic anisotropy"
2.6.1. Magnetic anneal
2.6.2. Plastic deformation
2.6.3. Phase transition
CHAPTER 6. APPLICATIONS OF SOFT MAGNETIC MATERIALS
1. Metallic soft magnetic materials
1.1. Pure iron and steels
1.2. Iron-silicon alloys
1.3. Nickel-iron alloys
1.4. Iron-cobalt alloys
1.5. Miscellaneous soft magnetic alloys
2. Ferrites and compounds
2.1. Ferrites used at frequencies up to 300 MHz
2.2. Ferrites used at microwave frequencies
2.3. Square-loop ferrites (SLF's)
3. Thin films
CHAPTER 7. SPECIAL TOPICS
1. Radiation effects
1.1. The nature of radiation damage
1.1.1. Atomic displacement
1.1.2. Electronic excitation and ionization
1.1.3. Transmutation
1.1.4. Local heating in both crystalline and amorphous substances
1.1.5. Annealing of radiation-induced defects
1.2. Radiation damage to soft magnetic materials
1.2.1. Radiation effects on the intrinsic magnetic properties
1.2.2. Deterioration of the structure-sensitive magnetic properties
2. Magnetic bubbles and devices
2.1. Properties of bubble domains
2.1.1. Strip domains in an applied field
2.1.2. Magnetic energy of bubble domains
2.1.3. The stability of magnetic bubbles
2.1.4. Bubble dynamics
2.2. Bubble materials
2.2.1. Material requirements for bubble devices
2.2.2. Crystalline bubble materials
2.2.3. Amorphous bubble materials
2.3. Application of magnetic bubbles
2.3.1. Operational principles of bubble devices
2.3.2. Bubble devices
2.3.3. The future
APPENDIX 1
Conversion table of magnetic and select physical quantities
APPENDIX 2
Values of select physical constants
APPENDIX 3
Demagnetizing factor and magnetostatic energy
REFERENCES
AUTHOR INDEX
SUBJECT INDEX
MATERIALS INDEX