Few subjects in science are more difficult to understand than magnetism, according to Encyclopedia Britannica. However, there is a strong demand today for scientists and engineers with skills in magnetism because of the growing number of technological applications of this phenomenon. Therefore, instructors and students alike need a comprehensive textbook that introduces the basic concepts of the science.Introduction to Magnetism and Magnetic Materials has been thoroughly revised since the first edition to include recent developments in the field. The early chapters comprise a discussion of the fundamentals of magnetism that introduces students in science and engineering to a general understanding of the subject. These chapters include more than 60 sample problems with complete solutions to reinforce learning. The later chapters review the most significant recent developments in four important areas of magnetism: hard and soft magnetic materials, magnetic recording, and magnetic evaluation of materials. These later chapters also provide a survey of the most important areas of magnetic materials for practical applications.
Extensive references to the principal publications in magnetism are listed at the end of each chapter, which offer the reader rapid access to more specialized literature.Students in various scientific areas will benefit from this book, including those in physics, materials science, metallurgy, and electrical engineering.
Table of Contents
PART 1: ELECTROMAGNETISM - MAGNETIC PHENOMENA ON THEMACROSCOPIC SCALE MAGNETIC FIELDS The Magnetic Field Magnetic Induction Magnetic Field Calculations References Further Reading Exercises MAGNETIZATION AND MAGNETIC MOMENT Magnetic Moment Magnetic Poles and Amperian Bound Currents Magnetization Magnetic Circuits and Demagnetizing Field Penetration of Alternating Magnetic Fields into Materials References Further Reading Exercises MAGNETIC MEASUREMENTS Induction Methods Force Methods Methods Depending on Changes in Material Properties SQUIDS References Further Reading Exercises MAGNETIC MATERIALS Classification of Magnetic Materials Magnetic Properties of Ferromagnets Different Types of Ferromagnetic Materials for Applications Paramagnetism and Diamagnetism References Further Reading Exercises MAGNETIC PROPERTIES Hysteresis and Related Properties The Barkhausen Effect and Related Phenomena Magnetostriction Magnetoresistance References Further Reading Exercises PART 2: MAGNETISM IN MATERIALS - MAGNETIC PHENOMENA ON THE MICROSCOPIC SCALE MAGNETIC DOMAINS Development of Domain Theory Energy Considerations and Domain Patterns References Further Reading Exercises DOMAIN WALLS Properties of Domain Boundaries Domain-wall Motion References Further Reading Exercises DOMAIN PROCESSES Reversible and Irreversible Domain Processes Determination of Magnetization Curves from Pinning Models Theory of Ferromagnetic Hysteresis Dynamics of Domain Magnetization Processes References Further Reading Exercises MAGNETIC ORDER AND CRITICAL PHENOMENA Theories of Paramagnetism and Diamagnetism Theories of Ordered Magnetism Magnetic Structure References Further Reading Exercises ELECTRONIC MAGNETIC MOMENTS Classical Model of Magnetic Moments of Electrons Quantum Mechanical Model of Magnetic Moments of Electrons Magnetic Properties of Free Atoms References Further Reading Exercises QUANTUM THEORY OF MAGNETISM Electron-electron Interactions The Localized Electron Theory The Itinerant Electron Theory References Further Reading Exercises PART 3: MAGNETICWS - TECHNOLOGICAL APPLICATIONS SOFT MAGNETIC MATERIALS Properties and Applications Materials for AC Applications Materials for DC Applications Materials for Magnetic Shielding References Further Reading HARD MAGNETIC MATERIALS Properties and Applications Permanent Magnet Materials References Further Reading MAGNETIC RECORDING Magnetic Recording Media Recording Heads and the Recording Process Modeling the Magnetic Recording Process References Further Reading MAGNETIC EVALUATION OF MATERIALS Methods for Evalulation of Intrinsic Properties Methods for Detection of Flaws and Other Inhomogeneities Magnetic Imaging Methods Conclusions References Further Reading SOLUTIONS APPENDICES AUTHOR INDEX SUBJECT INDEX