Magnonic Devices: Numerical Modelling and Micromagnetic Simulation Approach

Preface
	References
Contents
1 Introduction
	References
2 Backward Volume Spin Waves in a Rectangular Geometry
	2.1 Solution to Walker\'s Equation
		2.1.1 Dispersion Characteristics for Dipolar Spin Waves
		2.1.2 Dispersion Characteristics of Exchange Spin Waves
	Reference
3 Magnetostatic Waves in Magnonic Crystals: A PWM Approach
	3.1 Magnetostatic Waves in 1D Magnonic Crystal
	3.2 Walker\'s Equation in a One-Dimensional Magnonic Crystal
	3.3 Dispersion Characteristics of Backward Volume Spin Waves
	References
4 Field Localization in Striped Magnonic Crystal Waveguide
	4.1 Geometry and Method of Analysis
	4.2 Static Demagnetizing Field
	4.3 Spin Wave Magnonic Band
	4.4 Spin Wave Localizations in Striped Magnonic Waveguide
	4.5 Convergence
	4.6 Conclusion
	References
5 Walker\'s Solution for Curved Magnonic Waveguide and Resonant Modes in Magnonic Ring
	5.1 Spin Wave Dispersion for Curved Magnonic Waveguide
		5.1.1 Geometry and Analysis
		5.1.2 Dispersion Relation of Curved Magnonic Waveguide
		5.1.3 Validations
		5.1.4 Modes in a Magnonic Ring
	5.2 Conclusion
	References
6 Nanocontact-Driven Spin Wave Excitations in Magnonic Cavity
	6.1 Introduction
	6.2 Micromagnetic Simulations
	6.3 Method of Calculation
		6.3.1 Band Structure of Antidot MC
		6.3.2 Spin Wave Injection on Py Film Using an Array of Nanocontacts
		6.3.3 Fabry-Perot Model
		6.3.4 SW Spectra
		6.3.5 Quality Factor Calculation
	6.4 Conclusion
	References
7 Magnetic Field Feedback Oscillator: A Micromagnetic Study
	7.1 Introduction
	7.2 Feedback Oscillator with Magnetic Field Feedback: A Closed Loop System Study
		7.2.1 Micromagnetic Simulation Without Magnetic Field Feedback
		7.2.2 Free Layer Model
		7.2.3 Free Layer Hysteresis Loops
		7.2.4 Ferromagnetic Resonance Frequency Versus Applied Field
		7.2.5 Current Dependence on Resonance Frequency
		7.2.6 Spintronic Oscillators with Magnetic Field Feedback
		7.2.7 Spin Wave Dynamics with Magnetic Field Feedback
		7.2.8 Spin Wave Dynamics at 300 K
		7.2.9 Spin Wave Spectra with Different Delays
	7.3 Conclusion
	References
Appendix  Appendix
A.1 Derivation of Permeability Tensor
A.2 General Solution of Walker\'s Equation
A.3 Micromagnetic Simulation Script
	Reference