Rado / Suhl Spin Arrangements and Crystal Structure, Domains, and Micromagnetics

A Treatise on Modern Theory and Materials
1. Auflage 2013
ISBN: 978-1-4832-6832-3
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 640 Seiten, Web PDF

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.

Autoren/Hrsg.

Rado, George T.

Suhl, Harry

Inhaltsverzeichnis

1;Front Cover;1
2;Spin Arrangements and Crystal Structure, Domains, and Micromagnetics;4
3;Copyright Page;5
4;Table of Contents;10
5;Contributors to Volume III;6
6;Preface;8
7;Contents of Volume I;14
8;Contents of Volume II;16
9;Chapter 1. Magnetism and Crystal Structure in Nonmetals;18
9.1;I. Some Important Nonmetallic Structures;18
9.2;II. Description of Outer Electrons;41
9.3;III. Applications to Magnetism;54
9.4;References;76
10;Chapter 2. Evaluation of Exchange Interactions from Experimental Data;80
10.1;I. Introduction;80
10.2;II. Isolated Clusters;84
10.3;III. Antiferromagnetic Compounds;101
10.4;IV. Ferrimagnetic Compounds;120
10.5;V. Miscellaneous Comments and Conclusions;124
10.6;VI. Recent Developments;125
10.7;Appendix A: Molecular Field Relations;128
10.8;References;129
11;Chapter 3. Theory of Neutron Scattering by Magnetic Crystals;132
11.1;I. Introduction;132
11.2;II. Basic Formulas for "Spin-Only" Magnetic Moments;134
11.3;III. Diffuse Scattering in the Quasistatic Approximation;144
11.4;IV. Inelastic Collisions;153
11.5;V. Effects of Orbital Magnetism;159
11.6;References;163
12;Chapter 4. Spin Configuration of Ionic Structures: Theory and Practice;166
12.1;Introduction;167
12.2;I. Theoretical; the Macroscopic Theory;167
12.3;II. Theoretical; the Microscopic Method (Matrix Method);177
12.4;III. Practice;196
12.5;Appendix A: Decomposition of WRR';215
12.6;Appendix B: Some Remarks on Dipolar Energy;216
12.7;Appendix C: Some Remarks on the Lyons-Kaplan and Other Methods;218
12.8;References;222
13;Chapter 5. Spin Arrangements in Metals;228
13.1;I. Introduction;228
13.2;II. Neutron Diffraction Techniques;229
13.3;III. Spin Structures;236
13.4;IV. Magnetic Form Factors and Spin Densities;264
13.5;V. Conclusion;282
13.6;References;284
14;Chapter 6. Fine Particles, Thin Films and Exchange Anisotropy (Effects of Finite Dimensions and Interfaces on the Basic Properties of Ferromagnets);288
14.1;I. Introduction;288
14.2;II. Fine Particles; Superparamagnetism;289
14.3;III. Thin Films;315
14.4;IV. Surface Anisotropy;331
14.5;V. Exchange Anisotropy;340
14.6;References;361
15;Chapter 7. Permanent Magnet Material;368
15.1;I. Introduction;368
15.2;II. Theory of Permanent Magnets as Fine Particle Materials;370
15.3;III. Permanent Magnet Powder Materials;389
15.4;IV. Permanent Magnet Alloys;396
15.5;References;407
16;Chapter 8. Micromagnetics;412
16.1;I. Introduction;412
16.2;II. Brown's Equations;413
16.3;III. Solutions of Brown's Equations;416
16.4;IV. Discussion;426
16.5;References;430
17;Chapter 9. Domains and Domain Walls;432
17.1;I. Introduction;432
17.2;II. Observation of Domain Structure;433
17.3;III. Domain Structures;446
17.4;IV. Domain Walls;459
17.5;V. Antiferromagnetic Domains;470
17.6;VI. Films and Teaching Aids;476
17.7;References;478
18;Chapter 10. The Structure and Switching of Permalloy Films;482
18.1;I. Introduction;482
18.2;II. Preparation and Structure;485
18.3;III. Quasistatic Switching;499
18.4;IV. Pulse Switching;522
18.5;Appendix A: Dispersion Measurements;534
18.6;Appendix B: Notation for Applied Fields;537
18.7;References;538
19;Chapter 11. Magnetization Reversal in Nonmetallic Ferromagnets;542
19.1;I. Introduction;542
19.2;II. Experimental Procedures and Results;546
19.3;III. Equation of Motion of the Magnetization;549
19.4;IV. Modes of Magnetization Reversal;555
19.5;V. Conclusion;567
19.6;References;568
20;Chapter 12. Preparation and Crystal Synthesis of Magnetic Oxides;570
20.1;I. Polycrystalline Materials;570
20.2;II. Preparation of Single Crystals;597
20.3;References;612
21;Author Index;616
22;Subject Index;632