Spin dynamics in confined magnetic structures

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Spin dynamics in confined magnetic structures / Burkard Hillebrands, Kamel Ounadjela (eds.)

資料種別:

電子ブック

出版情報:

Berlin : Springer, [20--]

形態:

1 online resource (xvi, 335 p.)

著者名:

ISBN:

9783540409076 [3540409076] (1 : electronic bk)

書誌ID:

TT00017799

子書誌情報

フルテキスト

所蔵情報

書誌詳細

注記:

原資料の出版事項: Berlin : Springer , c2002
Description based on online resource (viewed on December 4, 2019)
Includes bibliographical references and index

主題:

Magnetic structure; Nuclear spin

言語:

英語

目次情報:

An Introduction to Micromagnetics in the Dynamic Regime / Jacques Miltat ; GonÃ§alo Albuquerque ; AndrÃ© 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

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：

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