Theory of Magnetostatic Waves
(Sprache: Englisch)
Magnetic materials can support propagating waves of magnetization; since these are oscillations in the magnetostatic properties of the material, they are called magnetostatic waves (sometimes "magnons" or "magnetic polarons"). Under the proper circumstances...
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Magnetic materials can support propagating waves of magnetization; since these are oscillations in the magnetostatic properties of the material, they are called magnetostatic waves (sometimes "magnons" or "magnetic polarons"). Under the proper circumstances these waves can exhibit, for example, either dispersive or nondispersive, isotropic or anisotropic propagation, nonreciprocity, frequency-selective nonlinearities, soliton propagation, and chaotic behavior. This rich variety of behavior has led to a number of proposed applications in microwave and optical signal processing. This textbook begins by discussing the basic physics of magnetism in magnetic insulators and the propagation of electromagnetic waves in anisotropic dispersive media. It then treats magnetostatic modes, describing how the modes are excited, how they propagate, and how they interact with light. There are problems at the end of each chapter; many of these serve to expand or explain the material in the text. To enhance the book's usefulness as a reference, the answers are given for many of the problems. The bibliographies for each chapter give an entry to the research literature. Magnetostatic Waves will thus serve not only as an introduction to an active area of research, but also as a handy reference for workers in the field.
Inhaltsverzeichnis zu „Theory of Magnetostatic Waves “
1. Introduction to Magnetism.- 1.1. Magnetic Properties of Materials.- 1.2. Spinning Top.- 1.3. Magnetism.- 1.4. Magnetic Moments of Atoms and Ions.- 1.5. Elements Important to Magnetism.- Problems.- 2. Magnetic Susceptibilities.- 2.1. Diamagnetism.- 2.2. Paramagnetism.- 2.3. Weiss Theory of Ferromagnetism.- 2.4. Néel Theory of Ferrimagnetism.- 2.5. Exchange Interaction.- 2.6. Magnetocrystalline Anisotropy.- 2.7. Polder Susceptibility Tensor.- 2.8. Magnetic Damping.- Problems.- 3. Electromagnetic Waves in Anisotropic Dispersive Media.- 3.1. Maxwell's Equations.- 3.2. Constitutive Relations.- 3.3. Instantaneous Poynting Theorem.- 3.4. Complex Poynting Theorem.- 3.5. Energy Densities in Lossless Dispersive Media.- 3.6. Wave Equations.- 3.7. Polarization of the Electromagnetic Fields.- 3.8. Group and Energy Velocities.- 3.9. Plane Waves in a Magnetized Ferrite.- 3.10. The Magnetostatic Approximation.- Problems.- 4. Magnetostatic Modes.- 4.1. Walker's Equation.- 4.2. Spin Waves.- 4.3. Uniform Precession Modes.- 4.4. Normally Magnetized Film: Forward Volume Waves.- 4.5. Tangentially Magnetized Film: Backward Volume Waves.- 4.6. Tangentially Magnetized Film: Surface Waves.- Problems.- 5. Propagation Characteristics and Excitation of Magnetostatic Waves.- 5.1. Energy Velocities for Magnetostatic Waves.- 5.2. Propagation Loss.- 5.3. Mode Orthogonality and Normalization.- 5.4. Excitation of Magnetostatic Waves.- Problems.- 6. Variational Formulation for Magnetostatic Modes.- 6.1. General Problem Statement.- 6.2. Calculus of Variations.- 6.3. Small-Signal Functional for Ferrites.- 6.4. Interpretation of the Functional.- 6.5. Stationary Formulas.- 6.6. Stationary Formula Examples with Forward Volume Waves.- Problems.- 7. Optical-Magnetostatic Wave Interactions.- 7.1. Symmetric Dielectric Waveguides.- 7.2. Magneto-Optical Interactions.- 7.3. Coupled-Mode Theory.- 7.4. Scattering of Optical Guided Modes by Magnetostatic Waves.- 7.5. Anisotropic Bragg Diffraction.- Problems.-
... mehr
Appendix: Properties of Yttrium Iron Garnet.
... weniger
Bibliographische Angaben
- Autor: Daniel D Stancil
- 2012, Softcover reprint of the original 1st ed. 1993, 214 Seiten, 86 Abbildungen, Masse: 15,5 x 23,5 cm, Kartoniert (TB), Englisch
- Verlag: Springer, Berlin
- ISBN-10: 146139340X
- ISBN-13: 9781461393405
Sprache:
Englisch
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