Functional Magnetic and Spintronic Nanomaterials (NATO Science for Peace and Security Series B: Physics and Biophysics)

Preface
Contents
Contributors
1 Influence of Strong Electron –Electron Correlations on the Electrical Conduction and Magnetic Properties of Substitutional Alloys as Advanced Functional Spintronic Materials
	1.1 Introduction
	1.2 Magnetic Phase Diagrams of Binary Disordered Substitutional B.C.C. Alloys with Strong Electron Correlations
	1.3 Temperature Dependence of Magnetic Order in B.C.C.-Fe–Co Alloy with Strong Electron–Electron Correlations
	1.4 Electronic Structure and Conduction of B.C.C.-Fe–Co: Temperature and Concentration Dependences of Electrical Resistance
		1.4.1 Weak Temperature Dependence of Electrical Conductivity in the Weak Scattering Regime
		1.4.2 Temperature-Dependent Behavior of Electrical Resistance
		1.4.3 Concentration Dependence of Electrical Resistance
	1.5 Conclusions
	References
2 Engineered Fe-Based Nanocolumnar Films
	2.1 Introduction
	2.2 Methods
		2.2.1 Synthesis
		2.2.2 Thermal Treatment
		2.2.3 Characterization
	2.3 Results and Discussion
		2.3.1 Morphology
		2.3.2 Crystal Structure
		2.3.3 Magnetic Properties
		2.3.4 Functionalized Nanocolumnar Films
	2.4 Conclusions
	References
3 Mn-Based Perpendicular Magnetic Tunnel Junctions
	3.1 Introduction
	3.2 CoFeB Reaching its Limits
	3.3 A Promising Alternative: L10 Mn-Based Binary Alloys
	3.4 L10 Mn-Based Perpendicular Magnetic Tunnel Junctions
	3.5 Conclusions
	References
4 Longitudinal Evolution of the Magnetization in Nanostructures
	4.1 Introduction
	4.2 The Equations of Motion for Description of the Longitudinal Dynamics
		4.2.1 The Landau–Lifshitz–Bar\'yakhtar Equation
		4.2.2 The Landau–Lifshitz–Bloch Equation
	4.3 Ultrafast Laser-Induced Ultrafast Magnetization Dynamics Ni–Fe Heterostructures
		4.3.1 Modeling the Heterostructures
		4.3.2 Results for the Ni-Fe System
	4.4 Enhanced Longitudinal Relaxation of Magnetic Solitons in Ultrathin Films
		4.4.1 Formulation of the Problem
		4.4.2 Calculation of the Domain Wall Structure with DMI
		4.4.3 The Longitudinal Relaxation Constant
		4.4.4 Calculation of the Longitudinal Magnetic Susceptibility for Ultrathin Films
		4.4.5 Analyzing of the Experimental Data
		4.4.6 Conclusion
	4.5 The Extraction of the Exchange Stiffness in Ultrathin Ferromagnetic Films Based on Analyzing of Magnetization Temperature Dependencies
	4.6 Conclusions
	References
5 Controlling Multimagnon Interaction in Magnetic Nanodots and Spintronic Nanostructures
	5.1 Introduction
	5.2 Nonlinear Spin-Wave Processes and Their Manifestation in Spin-Wave Dynamics
	5.3 Control of Nonlinear Interaction in Thin Ferromagnetic Films
	5.4 Nonlinearity Control Based on Discrete Spin-Wave Spectrum in Nanostructures
	5.5 Theoretical Formalism for Nonlinear Spin-Wave Interaction in Magnetic Nanostructures
	5.6 Controlling Three-Magnon Interaction by Spatial Symmetry Breaking
		5.6.1 Vortex-State Magnetic Disk
		5.6.2 Single-Domain Magnetic Dot with In-Plane Ground State
		5.6.3 Single-Domain Magnetic Dot with Perpendicular Ground State
		5.6.4 Possible Nanoscale Realizations of Three-Magnon Interaction Control
	5.7 Mode Hybridization as a Mean for Controlling Four-Magnon Scattering
	5.8 Summary
	References
6 Domain Wall Automotion by Cross Section Tailoring in Ferromagnetic Nanostripes
	6.1 Introduction
	6.2 Model of Curved Biaxial Stripe
	6.3 Effective Equations of Motion for Domain Wall
	6.4 Domain Wall Automotion in a Straight Stripe
	6.5 Domain Wall Automotion in a Circular Arc-Shaped Stripe
	6.6 Details of Numerical Simulations
	6.7 Conclusions
	References
7 Supercritical Propagation of Nonlinear Magnetization Wave Through an Antiferromagnetic Magnonic Crystal
	7.1 Introduction
	7.2 Theory and Calculations
		7.2.1 Model Description: Basic Relations
		7.2.2 Solutions of the Landau-Lifshitz Equations Inside the AFM Sections
		7.2.3 Propagation of the Nonlinear Magnetization Wave in the Entire Magnonic Crystal
	7.3 Results and Discussion
	7.4 Conclusions
	References
8 Energy Conversion and Energy Harvesting in Spin Diodes
	8.1 Introduction
	8.2 Basic Physics of Spin Diodes
		8.2.1 Energy Conversion Rate and Energy Harvesting Efficiency of SDs
		8.2.2 Diodes Based on Magnetic Multilayers
		8.2.3 Spin Hall Diodes
	8.3 Energy Conversion and Energy Harvesting in Spin Diodes Based on Ferromagnetic Magnetoresistive Junctions
	8.4 Energy Conversion and Energy Harvesting in Spin Hall Diodes
	8.5 Conclusion
	References
9 Magnetic Nanocomponents for Frequency Converting in Quantum Computing Technologies
	9.1 Introduction
	9.2 Analytical Model of Coupled Oscillators for Analysis of the Photon-Magnon Coupling Strength in a System of Coupled Microwave Resonators with a YIG Thin Film
	9.3 Strong Photon-Magnon Coupling in the Split-Ring Resonator with Periodic Metal Strips and a YIG Thin Film
	9.4 Strong Photon-Magnon Coupling in the System of a Double Spiral Resonator and a YIG Thin Film
	9.5 Conclusions
	References
10 Hybrid Quantum Transduction Systems Based on Magnonic Materials
	10.1 Introduction
	10.2 Photon-Magnon Coupling in the 3D Cavity with YIG Thin Film on GGG Substrate
	10.3 Modelling of the Fabry-Perot Resonator Consisting of Plano-Concave TiO2/SiO2 Bragg Mirrors
	10.4 Conclusions
	References
Index