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1.

図書

図書
Yu.A. Izyumov and V.E. Naish, R.P. Ozerov ; translated from Russian by Joachim Büchner
出版情報: New York : Consultants Bureau, c1991  xi, 339 p. ; 24 cm
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2.

図書

図書
Helmut Kronmüller, Manfred Fähnle
出版情報: Cambridge : Cambridge University Press, 2003  xv, 432 p. ; 26 cm
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Acknowledgements
Introduction / 1:
References
Units of magnetic properties / Appendix:
Magnetic Gibbs free energy / 2:
Introductionary remarks / 2.1:
Magnetic energy terms / 2.2:
Exchange energy / 2.2.1:
Short-range exchange interactions / 2.2.1.1:
Long-range exchange interactions / 2.2.1.2:
Magnetocrystalline anisotropy energy / 2.2.2:
Magnetostatic energies / 2.2.3:
Elastic potential of a ferromagnet / 2.2.4:
Strain tensor in ferromagnetic materials / 2.2.4.1:
Determination of strain tensors / 2.2.4.2:
Derivation of the magnetoelastic potential / 2.2.4.3:
Summary / 2.3:
Basic micromagnetic equilibrium conditions / 3:
Static micromagnetic equations / 3.1:
Micromagnetic equations in polar coordinates / 3.2:
Micromagnetic equations in terms of swirls and magnetic chares / 3.3:
Linearized micromagnetic equations / 3.4:
Domain walls in crystalline and amorphous solids / 4:
General remarks / 4.1:
Bloch walls / 4.2:
Effect of magnetostrictive deformations / 4.3:
Effect of internal stresses / 4.4:
Bloch walls in cubic crystals / 4.5:
Neel walls in bulk materials and thin films / 4.6:
Neel walls in bulk crystals / 4.6.1:
Neel walls in thin films / 4.6.3:
Phase diagrams of Neel and Bloch walls in thin films / 4.6.4:
Interaction of domain walls with defects / 5:
Interaction energy of domain walls with point defects / 5.1:
180[degree]-wall in amorphous alloys with uniaxial anisotropy / 5.3:
180[degree]-wall in [alpha]-Fe / 5.4:
Interaction forces of domain walls with point defects / 5.5:
Interaction of Bloch walls with dislocations / 5.6:
Straight dislocation lines / 5.6.1:
Dislocations of length l parallel to the domain wall plane (x, y) / 5.6.1.1:
Dislocations intersecting the domain walls / 5.6.1.2:
Straight dislocation dipoles / 5.6.2:
Dislocation loops / 5.6.3:
Interaction of domain walls with planar defects / 5.7:
Pinning by thin planar defects / 5.7.1:
Pinning by extended planar defects / 5.7.2:
Pinning by phase boundaries / 5.7.3:
Coercivity of modern magnetic materials / 6:
Micromagnetism of hard magnetic materials / 6.1:
Homogeneous rotation / 6.2.1:
Inhomogeneous rotation by the curling mode / 6.2.2:
Inhomogeneous rotation by the buckling mode / 6.2.3:
Critical diameters of single domain particles / 6.2.4:
Thermal stability limit / 6.2.4.1:
Crossover diameter for nucleation processes / 6.2.4.2:
Critical diameter for domain formation / 6.2.4.3:
Comparison with experiment / 6.2.5:
Nucleation under oblique magnetic fields / 6.3:
Curling mode / 6.3.1:
Nucleation in magnetically soft regions / 6.4:
Nucleation in inhomogeneous misaligned grains / 6.5:
Micromagnetic analysis of the coercive field of modern permanent magnets / 6.6:
Nucleation versus pinning / 6.6.1:
Analysis of the temperature dependence of the coercive field / 6.6.2:
Nanocrystalline and composite nanocrystalline magnets / 6.6.3:
Nanostructured, nanocrystalline Sm[subscript 2]Co[subscript 17]-based permanent magnets / 6.6.4:
Alternative coercivity models - the nucleus expansion model / 6.7:
Statistical theory of domain wall pinning / 7:
Statistical pinning potential / 7.1:
Applications of the statistical pinning theory / 7.2:
Dislocations in crystalline metals / 7.2.1:
Dislocation dipoles / 7.2.2:
Point defects / 7.2.3:
Amorphous alloys / 7.2.4:
Intrinsic fluctuations of exchange and local anisotropy energy / 7.2.4.1:
Internal stress sources / 7.2.4.2:
Coercive field due to surface irregularities / 7.2.4.3:
Nanocrystalline alloys / 7.2.5:
Law of approach to ferromagnetic saturation and high-field susceptibility / 8:
Approach to saturation in uniaxial crystals / 8.1:
Approach to saturation in cubic crystals / 8.3:
Approach to saturation in the presence of stress sources / 8.4:
Isotropic spherical defects / 8.4.1:
Dislocation groups / 8.4.3:
Anisotropy of the high-field susceptibility / 8.4.6:
Magnetostatic fluctuations / 8.4.8:
Magnetocrystalline fluctuations / 8.4.8.3:
Magnetoelastic fluctuations / 8.4.8.4:
Analysis of experimental results / 8.4.8.5:
Nonmagnetic holes and nonferromagnetic precipitations / 8.4.9:
Microstructure and domain patterns / 9:
Origin of domain patterns / 9.1:
Laminar domain patterns / 9.2:
Landau structure / 9.2.1:
Kittel structure / 9.2.2:
Partial Landau-Kittel structure / 9.2.3:
Kittel-type structure for in-plane easy direction / 9.2.4:
The [mu]* -correction / 9.2.5:
Branching of domains in hard magnetic materials / 9.2.6:
Domain patterns in amorphous alloys / 9.3:
As-quenched amorphous alloys / 9.3.1:
Magnetic annealing of amorphous alloys / 9.3.2:
Domain structure and magnetization processes / 9.3.3:
Stress-induced magnetic anisotropy / 9.3.4:
Stripe domains in thin ferromagnetic films / 9.4:
Dislocations and domain patterns / 9.5:
Domain patterns in plastically deformed Ni-single crystals / 9.5.1:
Domain patterns in plastically deformed Fe-single crystals / 9.5.3:
Micromagnetic background of the magnetoelastic coupling energy due to dislocations / 9.5.4:
Ripple structures / 9.5.5:
Magnetic after-effects in amorphous alloys / 10:
Double-well model of magnetic after-effects in amorphous alloys / 10.1:
Stabilization energy of domain walls / 10.3:
Formation of induced anisotropy / 10.4:
Basic experimental results / 10.5:
Concluding remarks / 10.6:
Magnetostriction in amorphous and polycrystalline ferromagnets / 11:
Outline of the problems / 11.1:
Polycrystalline model of amorphous ferromagnets / 11.2:
Basic computational ideas / 11.3:
Mathematical formalism / 11.4:
Balance-of-force method / 11.4.1:
Incompatibility method / 11.4.2:
Zeroth- and first-order terms / 11.4.3:
Results for the saturation magnetostriction of ferromagnets / 11.5:
Field dependence of magnetostriction / 11.6:
Appendix
Micromagnetic theory of phase transitions in spatially disordered spin systems / 12:
Classification of disordered spin systems / 12.1:
Phase transition in random exchange ferromagnets / 12.2:
Critical behaviour / 12.2.1:
Crossover regime to mean field behaviour / 12.2.2:
Molecular field theory and Landau-Ginzburg theory / 12.3:
Extended Landau-Ginzburg theory / 12.4:
Correlated molecular field theory / 12.5:
Physical motivation / 12.5.1:
Calculation of the paramagnetic zero-field susceptibility / 12.5.2:
Random ferrimagnets, spin glasses and random anisotropy magnets / 12.6:
Dynamic correlated molecular field theory / 12.7:
Computational micromagnetism of thin platelets and small particles / 13:
Applications of the finite difference method / 13.1:
Applications of the finite element method / 13.3:
Discretization and adaptive mesh refinement / 13.3.1:
Discretization of the Gibbs free energy used for computational micromagnetism / 13.3.2:
Magnetic structures and magnetization processes in thin platelets / 13.3.3:
Magnetic structures and magnetization processes in small particles / 13.3.4:
Soft magnetic particles in a hard magnetic matrix / 13.3.5:
Assemblies of nanocrystalline grains / 13.3.6:
Computational micromagnetism of dynamic magnetization processes / 14:
Landau-Lifshitz and Gilbert equations / 14.1:
Characteristic time ranges / 14.2:
Magnetization reversal in thin films / 14.3:
Discretization of the Landau-Lifshitz-Gilbert equation / 14.4:
Dynamic nucleation field / 14.5:
Dynamics of thermally activated reversal processes / 14.6:
Thermal fluctuations / 14.6.1:
Thermally activated relaxation / 14.6.2:
Scaling laws of the statistical pinning theory
Index
Acknowledgements
Introduction / 1:
References
3.

図書

図書
Burkard Hillebrands, Kamel Ounadjela (eds.)
出版情報: Berlin : Springer, c2002-2006  3 v. ; 24 cm
シリーズ名: Topics in applied physics ; v. 83, 87, 101
Physics and astronomy online library
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An Introduction to Micromagnetics in the Dynamic Regime / Jacques Miltat ; Gonçalo Albuquerque ; André Thiaville
Macrospin Dynamics / 1:
Foundations of Magnetization Precession / 1.1:
Link to Classical Mechanics and Electromagnetism / 1.2:
Introducing Damping / 1.3:
Viewing a Soft Thin Film as a Macrospin / 2:
Energy Functional / 2.1:
Asymptotic Solution Transverse Susceptibility in a Experiment / 2.2:
The Dynamical Astro?d and "No-Ringing" Critical Curves / 2.3:
Magnetization Dynamics Within a Lagrangian Formalism / 2.4:
Magnetization States at Submicron Sizes / 3:
Main Contributions to the Energy Density Functional in the Continuum Approximation / 3.1:
Energy Minimization / 3.2:
Applications to Rectangular Platelets with a 2: 1 Aspect Ratio / 3.3:
Magnetization Dynamics in the Continuum Approximation / 4:
The Landau-Lifshitz-Gilbert Equation of Magnetization Motion / 4.1:
A Transverse Susceptibility Experiment in the Continuum Approximation / 4.2:
Energy Dissipation Versus Damping / 4.3:
Reversal of the "S" State: An Example / 4.4:
Conclusion / 5:
Suggestions for Further Reading / 6:
Appendix / 7:
References
Nonlinear Spinwaves in One- and Two-Dimensional Magnetic Waveguides / Andrei N. Slavin ; Sergei O. Demokritov ; Burkard Hillebrands
Introduction
Basics of Nonlinear Spinwave Phenomena in Magnetic Films
Two-Dimensional Films and Quasi-One-Dimensional Waveguides
The Space- and Time-Resolved Brillouin Light-Scattering Spectrometer
Experimental Results
Effect of the Antenna Aperture / 5.1:
Spatial Self-Focusing: Spatial Solitons / 5.2:
Spatiotemporal Self-Focusing: Spinwave Bullets / 5.3:
Collisions of Spinwave Solitons and Bullets / 5.4:
Numerical Modeling of Nonlinear Spinwave Propagation
Conclusions
Sergey O. Demokritov
Preparation of Patterned Magnetic Structures
Spin-Wave Spectrum of Magnetic Wires and Dots
The Brillouin Light Scattering Technique
Arrays of Wires
Arrays of Dots
Stroboscopic Microscopy of Magnetic Dynamics / Mark R. Freeman ; Wayne K. Hiebert
Historical Overview
Experimental Details
Pulsed Optical Source
Transient Magnetic Excitation
Microscope and Polarization Imaging
System Operation
New Opportunities in Optical Imaging / 2.5:
Discussion of Representative Results
Relaxation,Resonance,and Small Angle Excitation
Dynamic Reversal and Large-Angle Excitation
Magnetic Device Characterization and Nonrepetitive Processes
Summary and Prospects
Solid Immersion Lens and Confocal Microscopy
Alternative Time-Resolved Magnetic Microscopies
Dynamics of Magnetization Reversal: From Continuous to Patterned Ferromagnetic Films / Jacques Ferre
Experimental Techniques
Overview of Field-Induced Magnetization Dynamics
Experimental Facts
Magnetic Aftereffect
Dynamics the Hysteresis Loop
Reversal Processes
The Nucleation Process
Domain Wall Motion
Numerical Simulations
General Considerations
Micromagnetic Simulations
Monte Carlo Simulations in a Nonhomogeneous Film
Simulations in a 2-D Random-Field Ising Model
Limitations of Simulations / 5.5:
Motion of an Interface in a Disordered Medium / 5.6:
Magnetisation Reversal Dynamics in a Quasi-Perfect Ultrathin Film
Domain Nucleation / 6.1:
Domain Wall Propagation / 6.2:
Magnetisation Reversal Dynamics in Nanostructures
General Remarks / 7.1:
Magnetisation Reversal in Small Elements / 7.2:
Magnetisation Reversal in Noncoupled Dot Arrays / 7.3:
Magnetisation Reversal in Coupled Dot Arrays / 7.4:
Small Amplitude Dynamics of Nonhomogeneous Magnetization Distributions: The Excitation Spectrum of Stripe Domains / Ursula Ebels ; Liliana D. Buda ; Kamel Ounadjela ; Phillip E.Wigen8:
Basics of Ferromagnetic Resonance
The Uniform FMR Mode
FMR Technique
Applications of FMR
Coupled Oscillations
General Conditions for the Observation of FMR Modes
High Pumping Power: Nonlinear Excitations and Chaos / 2.6:
Co(0001) Stripe Domains: Static Properties and Experimental Excitation Spectrum
General
Q Factor and Flux-Closure Caps
Static Properties of the Co(0001) Stripe Domains
Pumping Scheme / 3.4:
The Experimental Excitation Spectrum of Co(0001) / 3.5:
Fundamental Modes of Stripe Domains
Acoustic and Optic Domain Resonance Modes
Bloch Domain Wall Resonance
Wall Excitations of Stripe Domains with Flux-Closure Caps
Summary
Appendix: Domain Wall Dynamics
Landau-Lifschitz-Gilbert Equation in Polar Coordinates
Domain Wall Resonance
Steady-State Motion / 6.3:
Frequency Domain Magnetic Measurements from Kilohertz to Gigahertz / John F. Gregg
Time-Domain and Frequency-Domain Measurements
Resonant and Nonresonant Phenomena
The Magnetic Susceptibility x(w)
Resonant Structures
The Concept of Self-Oscillating Detectors
Beating Miller Capacitance; the Cherry and Hooper Pair
Practical Robinson Limiters
Cavities
Cryogenic Operation / 9:
Resonator Design / 10:
Construction of High-Performance Resonators for 300 kHz-200 MHz / 10.1:
Cavity Resonator Sensitivity / 10.2:
Thin Film Samples / 11:
Parameter Matrices for High-Frequency Circuit Analysis / 12:
Magnetic Modulation Techniques / 13:
Ultrasonic Spectrometers / 14:
Practical Construction and PCB Layout / 15:
Skin Depth Considerations / 16:
Practical Applications / 17:
Laser-Induced Ultrafast Demagnetization: Femtomagnetism, a New Frontier? / Guoping Zhang ; Wolfgang Hubner ; Eric Beaurepaire ; Jean-Yves Bigot
Historical View of Magnetization (Theory)
Heisenberg Model (Insulators)
Itinerant Theory (Metals)
Simple Theory for Spin-Lattice Relaxation: Picosecond Timescales
Theory for Ultrafast Spin Dynamics: Femtosecond Timescales
Theoretical Formalism
Results: Linear Optical and Magneto-Optical Responses
Results: Nonlinear Optical and Magneto-Optical Responses
Results: Intrinsic versus Extrinsic
Our Explanations: Spin and Charge Dephasing
Nonequilibrium Heating in Metals
Heating Metals with Ultrashort Laser Pulses
Three-Temperature Model of Ferromagnets
Ultrafast Spin Dynamics: Experimental Review
Magneto-Optical Response
Experimental Apparatus
Experimental Studies: Electrons and Spin Dynamics in Ferromagnets
Discussion
The Micromagnetics of Magnetoresistive Random Access Memory / Jian-Gang Zhu ; Youfeng Zheng
The Pseudospin-Valve Design
The Magnetic Tunneling Junction Design
The Vertical Magnetoresistive Random Access Memory
Micromagnetic Modeling and Computational Method
Contributions to the Total Energy Density
The Landau-Lifschitz Equation of Motion
Comparison of Simulated DomainStructures with Experimental Observations
Comparison with Images Obtained from Differential Phase-Contrast Microscopy
Simulated Domain Configurations in Thin Film Elements of Various Shapes
Magnetic Switching of Memory Elements in the Pseudospin-Valve and the Magnetic Tunneling Junction Designs
Switching of a Thick Rectangular Magnetic Film Element
Switching of a Thin Rectangular Magnetic Film Element
Switching of Elements with Tapered Ends
The Critical Need for Controlling the Tapered Ends
The Vertical Magnetoresistive Random Access Memory (VMRAM)
Design Concept
Ultimate Area Density Limitation and Magnetic Switching Speed
Read-Back Signal Level
Ring Versus Disk Shaped Elements and Fabrication Tolerance
Challenges and Promises
Reference
Index
Fast Switching of Mesoscopic Magnets / Thomas Schrefl ; Josef Fidler ; Rok Dittrich ; Dieter Suess ; Werner Scholz ; Vassilios Tsiantos ; Hermann Forster
The Equation of Motion
Small Magnetic Particles
Finite-Element Micromagnetics
Magnetization Reversal in Thin-Film Co Elements
Polycrystalline Co Elements
Switching in a Rotational Field
Switching of Perpendicular Discrete Media
Effects of Nonzero Temperature
Langevin Micromagnetics
Switching Dynamics at Nonzero Temperature
Spin Damping in Ultrathin Magnetic Films / Douglas L. Mills ; Sergio M. Rezende
Ferromagnetic Resonance in Ultrathin Ferromagnetic Films. Phenomenology
The Landau-Lifshitz Equation and the Ferromagnetic Resonance Response of Ultrathin Ferromagnetic Films Frequency Dependence of Line Width in FMR and BLS
Comments on Extensions of Landau-Lifshitz Phenomenology
Brief Comments on Experimental Data
Extrinsic Contributions to the Line Width: The Two-Magnon Mechanism
Historical Comments
The Nature of Spin Waves in Ultrathin Ferromagnetic Films
Two-Magnon Scattering and the FMR Response of Ultrathin Ferromagnetic Films
Experimental Evidence for the Role of Two Magnon-Processes in the Microwave Response of Ultrathin Ferromagnets
Concluding Remarks
Magnetization Dynamics Investigated by Time-Resolved Kerr Effect Magnetometry / Jürgen Fassbender
Numerical Simulations of Magnetization Dynamics within the Stoner Model
Model
Magnetization Dynamics in Static Magnetic Fields
Magnetization Dynamics in Pulsed Magnetic Fields
Time-Resolved Kerr Magnetometer Setup
Magnetization Dynamics in Ferrite Films
Control of Magnetization Dynamics
Spin-Wave Propagation
Calculation of the Magneto-Optic Response
High Speed Switching and Rotational Dynamics in Small Magnetic Thin Film Devices / Stephen E. Russek ; Robert D. McMichael ; Michael J. Donahue ; Shehzaad Kaka
Introduction to High-Speed Magnetic Devices
Background
Magnetic Devices
Single-Domain Modeling
Micromagnetic Simulations of High-Speed Device Dynamics
NIST Object Oriented MicroMagnetic Framework (OOMMF)
Standard Micromagnetic Problems
Modeling of Magnetic Rotation and Switching
Modeling of Devices Based on Domain-Wall Motion
High-Frequency Magnetic Device Measurement
Rotation and Ferromagnetic Resonance in GMR Devices
Switching of Small GMR Devices
Effects of Disorder and Thermal Fluctuations
Effects of Disorder
Effects of Thermal Fluctuations
Engineering High-Frequency Dynamic Properties
Time-Resolved X-Ray Magnetic Circular Dichroism - A Selective Probe of Magnetization Dynamics on Nanosecond Timescales / Stefania Pizzini ; Jan Vogel ; Marlio Bonfim ; Alain Fontaine
Synchrotron Radiation Techniques for Magnetism
X-ray Resonant Magnetic Scattering
X-ray Magnetic Circular Dichroism
Time-Resolved X-Ray Magnetic Circular Dichroism (XMCD)Experiments
Microcoils for High Pulsed Fields
Magnetization Dynamics Studied With XMCD
Magnetization Dynamics of Spin Valves and Tunnel Junctions Studied with Time-Resolved XMCD
Magnetization Dynamics of Tunnel Junctions
Conlusions and Perspectives
The Dynamic Response of Magnetization to Hot Spins / Wolfgang Weber ; Stefan Riesen ; Hans C. Siegmann
Absorption and Spin Motion of Electrons in Ferromagnets
Experiment
Samples
Results
Magnetic Phenomena Generated by an Exchange Field
The Torque Acting on Magnetization by Hot Spins
Precessional Magnetization Reversal
Ultrafast Magnetization and Switching Dynamics / Theo Rasing ; Hugo van den Berg ; Thomas Gerrits ; Julius Hohlfeld
Switching by Short Magnetic Field Pulses
Precessional Dynamics
Generation of Field Pulses using Photoconductive Switches
The Experimental Setup
Field-induced Precession Dynamics / 1.4:
Coherent Magnetization Reversal by Field-Pulse Shaping
Experimental Approach for Pulse Shaping
Excitation by Shaped Magnetic Field Pulses
Laser-induced Switching of Magnetic Media
Magneto-Optical Recording - Introduction
Thermomagnetic Writing - Basics
Ultrafast Dynamics of Thermomagnetic Writing
Experimental Procedure
Femtosecond Laser-induced Dynamics
Conclusion and Outlook / 3.6:
Laser-Induced Magnetization Dynamics / Bert Koopmans
Excitation and Detection Schemes
Dielectric Response
Transient Magneto-Optics
Implementation of Time-Resolved MOKE
Time-Resolved Magnetization Modulation
Magnetization-Induced Optical Second-Harmonic Generation
Photoemission / 2.7:
Other Approaches / 2.8:
Transient Magnetic Phenomena
Charge Dynamics
Demagnetization
Some Words on Conservation Laws
Dichroic Bleaching
Dependence on Ambient Temperature
MO Strain Effects
Laser-Induced Precession / 3.7:
Studies of Ultrafast Magnetization Dynamics
Early Work
Toward Instantaneous Magneto-Optics
Magnetism or Optics?
Identification of Optical Artifacts
Access to Genuine Magnetization Dynamics / 4.5:
GHz Dynamics / 4.6:
Conclusions and Outlook / 4.7:
Precessional Switching of Thin Nanomagnets with Uniaxial Anisotropy / Thibaut Devolder ; Hans Werner Schumacher ; Claude Chappert
Basic Facts About Precessional Dynamics in Transverse Field
From Stoner-Wohlfarth Energy Minimization to Precessional Switching
Definitions: Geometry and Notations
A Tutorial Example: The Bascule Precession of a Isotropic Thin Film
Magnetization Trajectory for a Loss-Free Isotropic Film Subjected to a Transverse Field / 2.3.1:
Switching Speed for a Loss-Free Isotropic Film Subjected to a Transverse Field / 2.3.2:
Precessional Switching at High Hard-Axis Fields
"All-Electrical" Experimental Methods
Evidence of the Quasiperiodic Nature of the Magnetization Motion
Evidence of Quasiballistic Magnetization Switching Trajectories
Precessional Switching at Moderate Hard-Axis Fields and Zero Damping
Classification of the Magnetization Trajectories
Field-Dominated (Switching) Trajectories / 4.1.1:
Anisotropy-Dominated (Nonswitching) Trajectories / 4.1.2:
Characteristic Times Involved in a Precessional Switching Event Near and Below H[subscript k]
Initial Delay, Slow-Down Time and Maximum Speed Time / 4.2.1:
Rule of Thumb for the Precession Frequency / 4.2.2:
Minimal Switching Field, Bifurcation Trajectory and its Intrinsic Noise Sensitivity
Arbitrary Initial Magnetization and Consequences for Nonmacrospin Samples
Minimal Reversal Field Versus Minimal Energy Cost
Perspectives for the Speed Scaling of Precessional MRAM
Damped Nanomagnets: Relaxation-Dominated Precessional Switching
Consequences of Finite Damping
Loss of Energy and of Periodicity / 5.1.1:
Rise-Time Constraints / 5.1.2:
Perturbation Treatment of Finite Damping
Energy Loss Per Unit Cycling of the Trajectory / 5.2.1:
Number of Trajectories Gone Through Before Bifurcation / 5.2.2:
Bifurcation Field in the Presence of Finite Damping
Direct-Write: Biasing the Precession with an Easy-Axis field
Precessional Switching in Magnetic Random Access Memories
Magnetization Trajectories for Combined Easy-Axis and Hard-Axis Fields
Magnetization Trajectories for Nearly Transverse Applied Fields / 6.2.1:
Magnetization Trajectories for Nearly Antiparallel Appllied Fields / 6.2.2:
General Case: Lobe Centers and Bounce-Occurrence Criteria / 6.2.3:
The Dynamical Astroid
Derivation of the Dynamical Astroid / 6.3.1:
Smallest Switching Field and Extrema of the Dynamical Astroid Curve / 6.3.2:
Characteristic Duration of a Precessional Direct-Write Event / 6.4:
Generalized Initial Delay / 6.4.1:
Main Rotation Time / 6.4.2:
Alignment Time / 6.4.3:
Pause Interval / 6.4.4:
Precession Frequency for Arbitrary Field Orientation / 6.4.5:
Strategies for the Cell Writing and Selection in a Practical Memory Array / 6.5:
The Selectivity and Direct-Write Issues in Precessional MRAM / 6.5.1:
Optimal Field Synchronization for Jitter Immunity / 6.5.2:
Size of the Addressing Window / 6.5.3:
Spin-Wave Excitations in Finite Rectangular Elements / Christian Bayer ; Jorg Jorzick ; Sergej O. Demokritov ; Konstantin Y. Guslienko ; Dmitry V. Berkov ; Natalia L. Gorn ; Mikhail P. Kostylev
Samples and Experimental Setup
Longitudinally Magnetized Long Stripes
Transversely Magnetized Long Stripes
Rectangular Elements
Analytical Approach
Rectangular Magnetic Elements
Outlook
Ferromagnetic Resonance Force Microscopy / Philip E. Wigen ; Michael L. Roukes ; Peter C. Hammel
MRFM Detection of Weakly Interacting Spins (ESR and NMR)
MRFM in Ferromagnetic Systems
Magnetostatic Modes
Linewidths
Scanning Mode
Dependence of the Fundamental Mode on Sample Dimensions / 3.3.1:
Dispersion Relation / 3.3.2:
Spatial Mapping of Magnetostatic Modes / 3.3.3:
Hidden Modes / 3.3.4:
Mapping RF Force Fields / 3.3.5:
FMRFM in Metal Films
Torque Measurements in a Uniform Field
Mechanical Torque on a Thin Film
Magnetization versus Field (M-H) Loops
Microresonating Torque Magnetometer ([mu]RTM)
Bimaterial Micromechanical Calorimeter Sensor for FMR
Vortex Dynamics / Christian H. Back ; Danilo Pescia ; Matthias Buess
Time-Resolved Magneto-Optical Microscopy
Brillouin Light Scattering
Synchrotron-Based Techniques
Excitation Schemes
Pulsed Precessional Motion
Microwave Excitation
The Energy Landscape of Confined Magnetic Structures
Gyroscopic Vortex Motion in Micrometer Sized Ferromagnetic Squares and Disks
The Modal Spectrum of Permalloy Disks
Domain-Wall Dynamics in Nanowires and Nanostrips / Andre Thiaville ; Yoshinobu Nakatani
Types of Samples and Domain Walls
Wall Types in Nanowires
Numerical Results / 2.1.1:
Comparison to 1D Profiles / 2.1.2:
One-Dimensional Effective Model
Wall Types in Nanostrips
Dynamics of a Transverse Wall in a Nanowire
Analytical Model
Dynamics of a Transverse Wall in a Nanostrip
Dynamics of a Bloch-Point Wall in a Nanowire
Dynamics of a Vortex Wall in a Nanostrip
General Results for Steady-State Motion of Domain Walls
Thiele's Equations
Doring's Kinetic Potential
Domain-Wall Dynamics in Magnetic Logic Devices / Del Atkinson ; Colm C. Faulkner ; Dan A. Allwood ; Russell P. Cowburn
Domain-Wall Propagation in Nanowires -Velocity and Dynamics
Domain-Wall Dynamics in Continuous and Nanostructured Permalloy Films
Domain-Wall Velocity in Permalloy Thin Films
Domain-Wall Behavior in Permalloy Planar Nanowires
Domain-Wall Dynamics in Complex Structures for Magnetic Logic
Magnetic Logic Circuits
Domain-Wall Propagation through Corner Structures
Domain-Wall Propagation through Logic Junction Structures
Spin-Transfer Torque and Dynamics / Mark D. Stiles
Quantum Scattering
Semiclassical Transport
Boltzmann Equation and Drift-Diffusion Approximation
Spin Pumping
Circuit Theory
Collinear Transport
Non-Collinear Transport and Torque
Leads/Reservoirs
Lateral Inhomogeneity
Micromagnetics
Geometry and Energetics
Landau-Lifshitz-Gilbert Equation
The Single or Macrospin Approximation
Onset of Precessional States / 4.3.1:
Precessional States: Stability Range / 4.3.2:
Switching and Out-of-Plane Precessional States / 4.3.3:
Langevin Dynamics
The Micromagnetic Regime
Appendix Drift-Diffusion Solution for a Single Interface / A:
Appendix Precession and Spin Transfer in Phase Space: Melnikov's Method / B:
Spin- and Energy Relaxation of Hot Electrons at GaAs Surfaces / Torsten Ohms ; Kevin Hiebbner ; Hans Christian Schneider ; Martin Aeschlimann
Review of Spin-Flip Processes in GaAs
Optical Orientation of Photoexcited Carriers
Band-Structure Properties
Elliott-Yafet Mechanism
Dyakonov-Perel Mechanism
Bir-Aronov-Pikus Mechanism
Spin-Polarization Dynamics
Theory of Spin-Relaxation Dynamics
Spin Decay in a Schottky Barrier
Experiments
Time- and Spin-Resolved 2PPE
Experimental Setup
Experimental Results for GaAs (100)
Comparison Between Experimental and Theoretical Results
An Introduction to Micromagnetics in the Dynamic Regime / Jacques Miltat ; Gonçalo Albuquerque ; André Thiaville
Macrospin Dynamics / 1:
Foundations of Magnetization Precession / 1.1:
4.

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Burkard Hillebrands, Kamel Ounadjela (eds.)
出版情報: Berlin : Springer, [20--]  1 online resource (xvi, 335 p.)
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An Introduction to Micromagnetics in the Dynamic Regime / Jacques Miltat ; Gonçalo Albuquerque ; André Thiaville
Macrospin Dynamics / 1:
Foundations of Magnetization Precession / 1.1:
Link to Classical Mechanics and Electromagnetism / 1.2:
Introducing Damping / 1.3:
Viewing a Soft Thin Film as a Macrospin / 2:
Energy Functional / 2.1:
Asymptotic Solution Transverse Susceptibility in a Experiment / 2.2:
The Dynamical Astro?d and "No-Ringing" Critical Curves / 2.3:
Magnetization Dynamics Within a Lagrangian Formalism / 2.4:
Magnetization States at Submicron Sizes / 3:
Main Contributions to the Energy Density Functional in the Continuum Approximation / 3.1:
Energy Minimization / 3.2:
Applications to Rectangular Platelets with a 2: 1 Aspect Ratio / 3.3:
Magnetization Dynamics in the Continuum Approximation / 4:
The Landau-Lifshitz-Gilbert Equation of Magnetization Motion / 4.1:
A Transverse Susceptibility Experiment in the Continuum Approximation / 4.2:
Energy Dissipation Versus Damping / 4.3:
Reversal of the "S" State: An Example / 4.4:
Conclusion / 5:
Suggestions for Further Reading / 6:
Appendix / 7:
References
Nonlinear Spinwaves in One- and Two-Dimensional Magnetic Waveguides / Andrei N. Slavin ; Sergei O. Demokritov ; Burkard Hillebrands
Introduction
Basics of Nonlinear Spinwave Phenomena in Magnetic Films
Two-Dimensional Films and Quasi-One-Dimensional Waveguides
The Space- and Time-Resolved Brillouin Light-Scattering Spectrometer
Experimental Results
Effect of the Antenna Aperture / 5.1:
Spatial Self-Focusing: Spatial Solitons / 5.2:
Spatiotemporal Self-Focusing: Spinwave Bullets / 5.3:
Collisions of Spinwave Solitons and Bullets / 5.4:
Numerical Modeling of Nonlinear Spinwave Propagation
Conclusions
Sergey O. Demokritov
Preparation of Patterned Magnetic Structures
Spin-Wave Spectrum of Magnetic Wires and Dots
The Brillouin Light Scattering Technique
Arrays of Wires
Arrays of Dots
Stroboscopic Microscopy of Magnetic Dynamics / Mark R. Freeman ; Wayne K. Hiebert
Historical Overview
Experimental Details
Pulsed Optical Source
Transient Magnetic Excitation
Microscope and Polarization Imaging
System Operation
New Opportunities in Optical Imaging / 2.5:
Discussion of Representative Results
Relaxation,Resonance,and Small Angle Excitation
Dynamic Reversal and Large-Angle Excitation
Magnetic Device Characterization and Nonrepetitive Processes
Summary and Prospects
Solid Immersion Lens and Confocal Microscopy
Alternative Time-Resolved Magnetic Microscopies
Dynamics of Magnetization Reversal: From Continuous to Patterned Ferromagnetic Films / Jacques Ferre
Experimental Techniques
Overview of Field-Induced Magnetization Dynamics
Experimental Facts
Magnetic Aftereffect
Dynamics the Hysteresis Loop
Reversal Processes
The Nucleation Process
Domain Wall Motion
Numerical Simulations
General Considerations
Micromagnetic Simulations
Monte Carlo Simulations in a Nonhomogeneous Film
Simulations in a 2-D Random-Field Ising Model
Limitations of Simulations / 5.5:
Motion of an Interface in a Disordered Medium / 5.6:
Magnetisation Reversal Dynamics in a Quasi-Perfect Ultrathin Film
Domain Nucleation / 6.1:
Domain Wall Propagation / 6.2:
Magnetisation Reversal Dynamics in Nanostructures
General Remarks / 7.1:
Magnetisation Reversal in Small Elements / 7.2:
Magnetisation Reversal in Noncoupled Dot Arrays / 7.3:
Magnetisation Reversal in Coupled Dot Arrays / 7.4:
Small Amplitude Dynamics of Nonhomogeneous Magnetization Distributions: The Excitation Spectrum of Stripe Domains / Ursula Ebels ; Liliana D. Buda ; Kamel Ounadjela ; Phillip E.Wigen8:
Basics of Ferromagnetic Resonance
The Uniform FMR Mode
FMR Technique
Applications of FMR
Coupled Oscillations
General Conditions for the Observation of FMR Modes
High Pumping Power: Nonlinear Excitations and Chaos / 2.6:
Co(0001) Stripe Domains: Static Properties and Experimental Excitation Spectrum
General
Q Factor and Flux-Closure Caps
Static Properties of the Co(0001) Stripe Domains
Pumping Scheme / 3.4:
The Experimental Excitation Spectrum of Co(0001) / 3.5:
Fundamental Modes of Stripe Domains
Acoustic and Optic Domain Resonance Modes
Bloch Domain Wall Resonance
Wall Excitations of Stripe Domains with Flux-Closure Caps
Summary
Appendix: Domain Wall Dynamics
Landau-Lifschitz-Gilbert Equation in Polar Coordinates
Domain Wall Resonance
Steady-State Motion / 6.3:
Frequency Domain Magnetic Measurements from Kilohertz to Gigahertz / John F. Gregg
Time-Domain and Frequency-Domain Measurements
Resonant and Nonresonant Phenomena
The Magnetic Susceptibility x(w)
Resonant Structures
The Concept of Self-Oscillating Detectors
Beating Miller Capacitance; the Cherry and Hooper Pair
Practical Robinson Limiters
Cavities
Cryogenic Operation / 9:
Resonator Design / 10:
Construction of High-Performance Resonators for 300 kHz-200 MHz / 10.1:
Cavity Resonator Sensitivity / 10.2:
Thin Film Samples / 11:
Parameter Matrices for High-Frequency Circuit Analysis / 12:
Magnetic Modulation Techniques / 13:
Ultrasonic Spectrometers / 14:
Practical Construction and PCB Layout / 15:
Skin Depth Considerations / 16:
Practical Applications / 17:
Laser-Induced Ultrafast Demagnetization: Femtomagnetism, a New Frontier? / Guoping Zhang ; Wolfgang Hubner ; Eric Beaurepaire ; Jean-Yves Bigot
Historical View of Magnetization (Theory)
Heisenberg Model (Insulators)
Itinerant Theory (Metals)
Simple Theory for Spin-Lattice Relaxation: Picosecond Timescales
Theory for Ultrafast Spin Dynamics: Femtosecond Timescales
Theoretical Formalism
Results: Linear Optical and Magneto-Optical Responses
Results: Nonlinear Optical and Magneto-Optical Responses
Results: Intrinsic versus Extrinsic
Our Explanations: Spin and Charge Dephasing
Nonequilibrium Heating in Metals
Heating Metals with Ultrashort Laser Pulses
Three-Temperature Model of Ferromagnets
Ultrafast Spin Dynamics: Experimental Review
Magneto-Optical Response
Experimental Apparatus
Experimental Studies: Electrons and Spin Dynamics in Ferromagnets
Discussion
The Micromagnetics of Magnetoresistive Random Access Memory / Jian-Gang Zhu ; Youfeng Zheng
The Pseudospin-Valve Design
The Magnetic Tunneling Junction Design
The Vertical Magnetoresistive Random Access Memory
Micromagnetic Modeling and Computational Method
Contributions to the Total Energy Density
The Landau-Lifschitz Equation of Motion
Comparison of Simulated DomainStructures with Experimental Observations
Comparison with Images Obtained from Differential Phase-Contrast Microscopy
Simulated Domain Configurations in Thin Film Elements of Various Shapes
Magnetic Switching of Memory Elements in the Pseudospin-Valve and the Magnetic Tunneling Junction Designs
Switching of a Thick Rectangular Magnetic Film Element
Switching of a Thin Rectangular Magnetic Film Element
Switching of Elements with Tapered Ends
The Critical Need for Controlling the Tapered Ends
The Vertical Magnetoresistive Random Access Memory (VMRAM)
Design Concept
Ultimate Area Density Limitation and Magnetic Switching Speed
Read-Back Signal Level
Ring Versus Disk Shaped Elements and Fabrication Tolerance
Challenges and Promises
Reference
Index
An Introduction to Micromagnetics in the Dynamic Regime / Jacques Miltat ; Gonçalo Albuquerque ; André Thiaville
Macrospin Dynamics / 1:
Foundations of Magnetization Precession / 1.1:
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