Ferromagnetic Resonance (eBook)

Front Cover 1
Ferromagnetic Resonance 4
Copyright Page 5
Table of Contents 6
EDITOR'S FOREWORD 10
CHAPTER I. MAGNETIC RESONANCE IN FERROMAGNETICS 16
CHAPTER II. PHENOMENOLOGICAL THEORY OF FERROMAGNETIC RESONANCE 27
1. INTRODUCTION 27
2. EQUATION OF MOTION FOR THE MAGNETIZATION OF A SYSTEM OF WEAKLY INTERACTING MAGNETIC ELECTRON MOMENTS 30
3. EFFECTIVE INTERNAL FIELD IN A FERROMAGNETIC. GENERAL FORMULA FOR THE RESONANCE FREQUENCY 34
4. THE EFFECT OF SHAPE ON THE RESONANCE FREQUENCY 39
5. THE EFFECT OF CRYSTAL MAGNETIC ANISOTROPY ON THE RESONANCE FREQUENCY 45
6. THE EFFECT OF DOMAIN STRUCTURE ON THE RESONANCE FREQUENCY 59
7. THE EFFECT OF SUB-LATTICE STRUCTURE OF FERROMAGNETIC SEMI-CONDUCTORS ON THE RESONANCE FREQUENCY 64
8. PHENOMENOLOGICAL APPROACH TO DAMPING IN THE EQUATION or MOTION FOR THE MAGNETIZATION OF A FERROMAGNETIC 69
9. THEKMODYNAMIC THEORY OF RESONANCE PHENOMENA IN FERROMAGNETICS† 74
10. LINE WIDTH OF RESONANCE ABSORPTION† 81
11. SOLUTION OF EQUATIONS OF MOTION IN THE CASE OF WEAK RADIO-FREQUENCY FIELDS. DYNAMIC PERMEABILITY TENSOR 85
12. DISPERSION RELATIONS IN THE THEORY OF FERROMAGNETIC RESONANCE 88
CHAPTER III. MAGNETIC RESONANCE IN FERROMAGNETICS AND ANTIFERROMAGNETICS AS EXCITATION OF SPIN WAVES 93
1. SPIN WAVES OR MAGNONS 94
2. EXCITATION OF FERROMAGNONS BY A HIGH-FREQUENCY ELECTROMAGNETIC FIELD 100
3. GENERAL PHENOMENOLOGICAL THEORY OF SPIN WAVES IN FERROMAGNETICS AND ANTIFERROMAGNETICS 105
4. SPIN WAVES IN A FERROMAGNETIC INCLUDING ANISOTROPY AND DEMAGNETIZING FIELDS† 115
5. SPIN WAVES IN AN ANTIFERROMAGNETIC† 120
6. SPIN WAVES AND MAGNETIC RESONANCE IN FERRIMAGNETICS† 130
7. WEAK FERROMAGNETISM† 134
CHAPTER IV. RELAXATION PROCESSES IN FERROMAGNETIC DIELECTRICS† 142
CHAPTER V. FEATURES OF FERROMAGNETIC RESONANCE IN METALS 159
1. QUALITATIVE EXAMINATION 159
2. INITIAL EQUATIONS 163
3. EQUIVALENT PERMEABILITY WHEN A SPECIMEN OF FERROMAGNETIC MATERIAL IS MAGNETIZED PARALLEL TO ITS SURFACE 164
4. DISCUSSION OF RESULTS AND COMPARISON WITH EXPERIMENT 168
5. EQUIVALENT PERMEABILITY WHEN A FERROMAGNETIC SPECIMENIS MAGNETIZED AT RIGHT ANGLES TO ITS SURFACE 174
6. ENERGY OF INTERACTION OF A FERROMAGNETIC'S MAGNETIZATION WITH CONDUCTION ELECTRONS 175
7. SPIN-ELECTRON RELAXATION AND LINE WIDTH 179
8. RESONANCE FREQUENCIES IN A FERROMAGNETIC METAL 188
9. FINAL REMARKS 197
CHAPTER VI. LINE WIDTH OF FERROMAGNETIC RESONANCE ABSORPTION 199
A. Basic Experimental Data 199
B. Survey of Theoretical Ideas on the Nature of the Line Width† 217
CHAPTER VII. NON-UNIFORM RESONANCE AND SPIN WAVES† 246
CHAPTER VIII. NON-LINEAR PROCESSES IN FERRITES IN U.H.F. FIELDS 263
1. INTRODUCTION 263
2. SOLUTION OF THE LANDAU-LIFSHITZ EQUATION BY THE METHOD OF SUCCESSIVE APPROXIMATIONS 265
3. "LAW OF CONSERVATION" OF THE DEGREE OF MAGNETIZATION 267
4. DETECTION 268
5. FREQUENCY DOUBLING 271
6. FREQUENCY CONVERSION IN THE CASE OF TWO TRANSVERSE ALTERNATING FIELDS 273
7. FREQUENCY CONVERSION IN THE CASE OF LONGITUDINAL AND TRANSVERSE ALTERNATING FIELDS 279
8. FERRITE OSCILLATOR AND AMPLIFIER 281
CHAPTER IX. EIGEN OSCILLATIONS AND NON-LINEAR PHENOMENA IN A FERRITE 294
1. INTRODUCTION 294
2. NON-UNIFORM MODES OF PRECESSION IN A FERRITE 296
3. NON-LINEAR PHENOMENA IN A FERRITE† 308
4. CONCLUSION 316
REFERENCES† 319
AUTHOR INDEX 330
SUBJECT INDEX 335
OTHER TITLES IN THE SERIES 341