Spin Arrangements and Crystal Structure, Domains, and Micromagnetics

Spin Arrangements and Crystal Structure, Domains, and Micromagnetics

A Treatise on Modern Theory and Materials

1st Edition - January 1, 1963

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  • Editors: George T. Rado, Harry Suhl
  • eBook ISBN: 9781483268323

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Description

Spin Arrangements and Crystal Structure, Domains, and Micromagnetics deals with cooperative phenomena characterized by ordered arrangements of magnetic moments subject to strong mutual interactions. The emphasis is on the ferromagnetism, ferrimagnetism, and antiferromagnetism of magnetically ordered materials such as insulators and metals. Both theoretical and experimental points of view are presented. Comprised of 12 chapters, this volume begins with an introduction to magnetism and crystal structure in nonmetals, followed by an evaluation of exchange interactions from experimental data. Subsequent chapters focus on the theory of neutron scattering by magnetic crystals; spin configuration of ionic structures; spin arrangements in metals; and permanent magnet materials. Fine particles, thin films, and exchange anisotropy are also considered, with particular reference to the effects of finite dimensions and interfaces on the basic properties of ferromagnets. The book also examines micromagnetics; domains and domain walls; the structure and switching of permalloy films; magnetization reversal in nonmetallic ferromagnets; and preparation and crystal synthesis of magnetic oxides. This book will be a useful resource for professionals and students with physics or chemistry backgrounds.

Table of Contents


  • Contributors to Volume III

    Preface

    Contents of Volume I

    Contents of Volume II

    1. Magnetism and Crystal Structure in Nonmetals

    I. Some Important Nonmetallic Structures

    II. Description of Outer Electrons

    III. Applications to Magnetism

    References

    2. Evaluation of Exchange Interactions from Experimental Data

    I. Introduction

    II. Isolated Clusters

    III. Antiferromagnetic Compounds

    IV. Ferrimagnetic Compounds

    V. Miscellaneous Comments and Conclusions

    VI. Recent Developments

    Appendix A. Molecular Field Relations

    References

    3· Theory of Neutron Scattering by Magnetic Crystals

    I. Introduction

    II. Basic Formulas for "Spin-Only" Magnetic Moments

    III. Diffuse Scattering in the Quasistatic Approximation

    IV. Inelastic Collisions

    V. Effects of Orbital Magnetism

    References

    4. Spin Configuration of Ionic Structures: Theory and Practice

    Introduction

    I. Theoretical; the Macroscopic Theory

    II. Theoretical; the Microscopic Method (Matrix Method)

    III. Practice

    Appendix A. Decomposition of WRR'

    Appendix B. Some Remarks on Dipolar Energy

    Appendix C. Some Remarks on the Lyons-Kaplan and Other Methods

    References

    5. Spin Arrangements in Metals

    I. Introduction

    II. Neutron Diffraction Techniques

    III. Spin Structures

    IV. Magnetic Form Factors and Spin Densities

    V. Conclusion

    References

    6. Fine Particles, Thin Films and Exchange Anisotropy (Effects of Finite Dimensions and Interfaces on the Basic Properties of Ferromagnets)

    I. Introduction

    II. Fine Particles; Superparamagnetism

    III. Thin Films

    IV. Surface Anisotropy

    V. Exchange Anisotropy

    References

    7. Permanent Magnet Materials

    I. Introduction

    II. Theory of Permanent Magnets as Fine Particle Materials

    III. Permanent Magnet Powder Materials

    IV. Permanent Magnet Alloys

    References

    8. Micromagnetics

    I. Introduction

    II. Brown's Equations

    III. Solutions of Brown's Equations

    IV. Discussion

    References

    9. Domains and Domain Walls

    I. Introduction

    II. Observation of Domain Structure

    III. Domain Structures

    IV. Domain Walls

    V. Antiferromagnetic Domains

    VI. Films and Teaching Aids

    References

    10. The Structure and Switching of Permalloy Films

    I. Introduction

    II. Preparation and Structure

    III. Quasistatic Switching

    IV. Pulse Switching

    Appendix A. Dispersion Measurements

    Appendix B. Notation for Applied Fields

    References

    11. Magnetization Reversal in Nonmetallic Ferromagnets

    I. Introduction

    II. Experimental Procedures and Results

    III. Equation of Motion of the Magnetization

    IV. Modes of Magnetization Reversal

    V. Conclusion

    References

    12· Preparation and Crystal Synthesis of Magnetic Oxides

    I. Polycrystalline Materials

    II. Preparation of Single Crystals

    References

    Author Index

    Subject Index

Product details

  • No. of pages: 640
  • Language: English
  • Copyright: © Academic Press 1963
  • Published: January 1, 1963
  • Imprint: Academic Press
  • eBook ISBN: 9781483268323

About the Editors

George T. Rado

Harry Suhl

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