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proceedings of the International Workshop on Studies of Magnetic Properties of Fine Particles and their Relevance to Materials Science, Rome, Italy, November 4-8, 1991
International Workshop on Studies of Magnetic Properties of Fine Particles and their Relevance to Materials Science (1991 : Rome, Italy)
1 online resource (xiv, 430 pages) : illustrations
The aim of this volume is to advance the understanding of the fundamental properties of fine magnetic particles and to discuss the latest developments from both the theoretical and experimental viewpoints, with special emphasis being placed on the applications in different branches of science and technology. All aspects of fine magnetic particles are covered in the 46 papers. The topics are remarkably interdisciplinary covering theory, materials preparation, structural characterization, optical and electrical properties, magnetic properties studied by different techniques and applications. Some new fundamental properties, such as quantum tunneling and transverse fluctuations of magnetic moments are also explored. Research workers involved in these aspects of materials technology will find this book of great interest.
Front Cover; Magnetic Properties of Fine Particles; Copyright Page; Foreword; Committees; Table of Contents; Part 1: Relaxation Processes; Chapter 1. Relaxation Processes in Small Particles; Abstract; I. INTRODUCTION; II. NÉEL'S THEORY; III. BROWN'S THEORY; IV. THE CURLING MODE; V. MAGNETIC VISCOSITY; VI. OTHER STUDIES; ACKNOWLEDGMENTS; REFERENCES; CHAPTER 2. THEORETICAL POINT OF VIEW ON RELAXATION IN SMALL PARTICLES; Abstract; 1. INTRODUCTION; 2. DIFFUSION MODEL OF SUPERPARAMAGNETIC RELAXATION; 3. RELAXATION MOSSBAUER SPECTRA; 4. THE THEORY OF SEDM SPECTRA; ACKNOWLEDGMENTS; REFERENCES
Chapter 3. Relaxation rate of fine magnetic particlesAbstract; 1. INTRODUCTION; 2. METHOD OF SOLUTION; 3. RESULTS AND DISCUSSION; 4. REFERENCES; Chapter 4. Static and dynamic study of fine particles by neutron scattering; Abstract; INTRODUCTION; 1. DIFFRACTION NEUTRON EXPERIMENT; 2. INELASTIC NEUTRON SCATTERING; References; Part 2: Preparation and Characterization; Chapter 5. Preparation of Fine Particles; Abstract; 1. INTRODUCTION; 2. EXPERIMENTAL METHODS; 3. STRUCTURAL AND MAGNETIC PROPERTIES; 4. THE ""SHELL-CORE"" MODEL; 5. CONCLUSIONS; 6. ACKNOWLEDGMENTS; REFERENCES
Chapter 9. Nanocrystalline Materials -- Structure and PropertiesAbstract; 1. INTRODUCTION; 2. PREPARATION; 3. STRUCTURE; 4. PROPERTIES; 5. NANOSTRUCTURED ALLOYS; Acknowledgements; REFERENCES; Chapter 10. XPS studies of Fe/Al2O3 and Fe82B18/Al203 small particle systems; Abstract; 1. INTRODUCTION; 2. EXPERIMENTAL; 3. RESULTS AND DISCUSSION; 4. REFERENCES; Chapter 11. Small Angle Neutron Scattering from Nanometer Grain Sized Materials; Abstract; 1. INTRODUCTION; 2. THEORETICAL BACKGROUND; 3. SANS STUDIES ON NANOPHASE MATERIALS; 4. CONCLUSIONS; 5. ACKNOWLEDGEMENT; 6. REFERENCES
Part 3: Magnetic Properties:Theory and ExperimentsChapter 12. Remanence Curves of Fine Particle Systems I: Experimental Studies; Abstract; 1. Introduction; 2. Temperature Decay of Remanence; 3. Field Dependent Remanence Curves; 4. Remanence Curves and Interactions; 5. Conclusions; Acknowledgements; References; Chapter 13. Remanence Curves of Fine Particle Systems II: Theoretical Studies of Interactions; Abstract; 1. Introduction; 2. The Model of an Interacting Fine Particle System; 3. Comparison of Remanence Curves; 4. Studies of Particulate Thin Films
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Includes bibliographical references and index.