3.45 Magnetic Materials, Spring 2004

Instructor:
Dr. Robert O'Handley

Course Description

This course will cover the following topics:

• Magnetostatics
• Origin of magnetism in materials
• Magnetic domains and domain walls
• Magnetic anisotropy
• Reversible and irreversible magnetization processes
• Hard and soft magnetic materials
• Magnetic recording

Special topics include magnetism of thin films, surfaces and fine particles; transport in ferromagnets, magnetoresistive sensors, and amorphous magnetic materials.

Materials Science and Engineering 224

Magnetism and Magnetic Materials

Prof. Yuri Suzuki

This course covers the fundamentals of magnetism and magnetic materials in the first two thirds pf the class. Topics include classical versus quantum mechanical pictures, diamagnetism, paramagnetism, crystal field environments, dipolar and exchange interactions, ferrromagnetism, antiferromagnetism, magnetic domains, magnetic anisotropy and magnetostriction. Magnetic materials covered include transition metals, their alloys and pxides, rare earths and their oxides, organic and molecular magnets, etc. Throughout the course, experimental techniques in magnetic characterization will be discussed. The second part of the course will focus on particular magnetic materials and devices that are of technological interest ( e.g., magnetoresistive and magneto-optical materials and devices). Additional topics include biomagnetism and spin glasses.

The purpose of this course is to introduce students to fundamental concepts in magnetism and to apply them to our understanding of magentic materials and devices in the world around us. The coursework assumes knowledge of basic electromagnetism, familiarity with some quantum mechanics and a course either in electronic properties of materials (Mat Sci 111) or an introductory solid state physics course. Through the lectures and readings from the text as well as the literature, students will develop an understanding of basic concepts in magnetism and how to apply them to advanced materials and devices. Materials used in devices for information storage, power and medical applications will be addressed.

This course will meet two times a week for ninety minutes. Students will be required to attend class and submit weekly homework assignments to enforce the fundamental concepts in magnetism. An exam on these fundamental concepts will be given during the semester. In lieu of a final exam, the student will submit a final paper, on a topic of his/her choice related to magnetism, along with a final presentation to the entire class.

TEXTBOOKS and REFERENCES

1. Spaldin, “Magnetic Materials,” REQUIRED TEXT
2. O’Handley, “Modern Magnetic Materials”
3. Cullity, “Introduction to Magnetic Materials” for a classical magnetism reference
4. Chikazumi,”Physics of Magnetism” for a reference with
5. Bozorth, “Ferromagnetism” for a compendium of materials information in addition to fundamental magnetism section
6. Blundell, “Magnetism in Condensed Matter” for a more physics perspective with a good background in quantum mechanics and electromagnetism

Introduction to Magnetism and Magnetic Materials

Second Edition

David C. Jiles

Wolfson Centre for Magnetics Technology, Cardiff University

List Price: $66.95
Cat. #: NT1121
ISBN: 9780412798603
ISBN 10: 0412798603
Publication Date: 6/16/1998
Number of Pages: 568

Introduces each section with a question that is subsequently answered through the text of the section

Reinforces learning with more than 60 sample problems and complete solutions

Lists extensive references to principal publications in magnetism at the end of each chapter

Covers topics such as magnetic fields, magnetic measurements, magnetic materials, magnetic properties, hard and soft magnetic materials, and magnetic recording

Offers an unparalleled assessment of magnetic properties and applications

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 utilizing this phenomenon. This textbook responds to the need for a comprehensive introduction of 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. 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

Physics of Ferromagnetism

Physics of Ferromagnetism

Second Edition

Soshin Chikazumi

Translation editor: C. D. Graham

Price: £165.00 (Hardback)
ISBN-10: 0-19-851776-9
ISBN-13: 978-0-19-851776-4
Publication date: 27 February 1997
Clarendon Press
668 pages, halftones, numerous line figures, tables, 240x168 mm
Series: International Series of Monographs on Physics number 94

Description

· Includes recent developments and techniques in magnetics · Describes magnetic phenomena intuitively and comprehensively

Readership: Graduate students and researchers in magnetism including departments of physics, materials science and materials engineering.

Contents

1. Magnetostatic phenomena 2. Magnetic measurements 3. Atomic magnetic moments 4. Macroscopic experimental techniques 5. Magnetic disorder 6. Ferromagnetism 7. Antiferromagnetism and ferrimagnetism 8. Magnetism of metals and alloys 9. Magnetism of ferromagnetic oxides 10. Magnetism of compounds 11. Magnetism of amorphous materials 12. Magnetocrystalline anisotrophy 13. Induced magnetic anisotropy 14. Magnetostriction 15. Observation of domain structures 16. Spin distribution and domain walls 17. Magnetic domain structure 18. Technical magnetization 19. Spin phase transition 20. Dynamic magnetization 21. Various phenomena association with magnetization 22. Engineering applications of magnetic materials

Authors, editors, and contributors

Soshin Chikazumi, Professor Emeritus, University of Tokyo Translation editor: C. D. Graham, Professor Emeritus, University of Pennsylvania

Modern Magnetic Materials: Principles and Applications

Modern Magnetic Materials: Principles and Applications

Robert C. O'Handley

ISBN: 978-0-471-15566-9

Hardcover

768 pages

November 1999

Table Of Contents

Introduction and Overview.

Magnetostatics.

Classical and Quantum Phenomenology of Magnetism.

Quantum Mechanics, Magnetism, and Exchange in Atoms and Oxides.

Quantum Mechanics, Magnetism, and Bonding in Metals.

Magnetic Anisotropy.

Magnetoelastic Effects.

Magnetic Domain Walls and Domains.

Magnetization Process.

Soft Magnetic Materials.

Amorphous Materials: Magnetism and Disorder.

Magnetism in Small Structures: Exchange Coupling and Nanocrystals.

Hard Magnetic Materials.

Magnetic Annealing and Directional Order.

Electronic Transport in Magnetic Materials.

Surface and Thin-Film Magnetism.

Magnetic Recording.

Appendices.

Index.

Workshop Physics

http://physics.dickinson.edu/~wp_web/wp_homepage.html

Workshop Physics is one component of the Activity Based Physics Suite. It is a calculus-based introductory physics curriculum designed to completely replace traditional lectures and laboratories. In a typical two-hour Workshop Physics class session, students use equipment and computer tools for data acquisition, visualization, analysis, and mathematical modeling.

Activity Based Physics

http://physics.dickinson.edu/~abp_web/abp_homepage.html

Activity-Based Physics is a multi-institutional project to sustain and enhance current efforts to render introductory physics courses more effective and exciting at both the secondary and college level. This program represents a collaborative effort by an informally constituted team of educational reformers to use the outcomes of physics education research along with flexible computer tools to develop activity-based models of physics instruction. This project includes the refinement of existing written materials, apparatus, instructional techniques, and computer software and hardware; the creation of new instructional materials and approaches; as well as classroom testing in different settings and dissemination. The refinement and development of instructional strategies and materials is informed by a comprehensive program of educational research.

Six Ideas That Shaped Physics: Unit C: Conservation Laws Constrain Interactions, 2E

http://catalogs.mhhe.com/mhhe/viewProductDetails.do?isbn=0072291524

		Six Ideas That Shaped Physics: Unit C: Conservation Laws Constrain Interactions, 2nd Edition
				Thomas A Moore, POMONA COLLEGE Softcover, 306 pages ©2003, ISBN 0072291524
		Table of Contents
				C1 Introduction to Interactions C2 Vectors C3 Interactions Transfer Momentum C4 Particles and Systems C5 Applying Momentum Conservation C6 Introduction to Energy C7 Some Potential Energy Functions C8 Force and Energy C9 Rotational Energy C10 Thermal Energy C11 Energy in Bonds C12 Power, Collisions, and Impacts C13 Angular Momentum C14 Conservation of Angular Momentum

Six Ideas that Shape Physics - Moore , 2E

http://catalogs.mhhe.com/mhhe/viewProductDetails.do?isbn=0072564822

				Six Ideas that Shape Physics: 6 Unit package, 2nd Edition
				Thomas A Moore, POMONA COLLEGE ©2003, ISBN 0072564822
		Description
				SIX IDEAS THAT SHAPED PHYSICS is the 21st century's alternative to traditional, encyclopedic textbooks. Thomas Moore designed SIX IDEAS to teach students: --to apply basic physical principles to realistic situations --to solve realistic problems --to resolve contradictions between their preconceptions and the laws of physics --to organize the ideas of physics into an integrated hierarchy
		Features
		A MORE CAREFUL AND COMPREHENSIVE APPROACH TO PROBLEM-SOLVING FRAMEWORKS. This includes a new general problem-solving framework that applies across units, new tools for solving specific kinds of problems, and more general instruction in problem-solving in the text. A NEW APPROACH TO EMPHASIZING IMPORTANT FORMULAS. The new edition puts crucial formulas in boxes that also display important information about its purpose and limitations and what its symbols mean. MANY MORE PHOTOGRAPHS help make the text more visually interesting and help link the concepts to physical reality. TWO-COLOR LAYOUT WITH COLOR TIED TO PEDAGOGICAL GOALS. Color is used to emphasize the imaginary elements we add to a situation when we construct a mental model. UNIT E (Electromagnetic Fields) HAS BEEN REWRITTEN to reduce the level of the mathematics, more strongly emphasize the concept of potential, and more strongly emphasize visual arguments. UNIT C (Conservation Laws) HAS BEEN REORGANIZED to increase the time spent on the difficult topics of collisions and angular momentum, to introduce the concept of force sooner, and to present the material in a more efficient manner. UNIT N (Laws of Physics) HAS BEEN SIMPLIFIED to reduce the level of the mathematics in various chapters, to use more visually-based lines of reasoning, and to more strongly emphasize computer solutions to realistic problems. NEW MATERIAL IN UNIT T (Thermodynamics, gases...) includes a treatment of the Boltzmann Factor and a more realistic exploration of degrees of freedom in gas molecules. This unit also discusses several new computer programs that help students more easily visualize important ideas.

The Sciences: An Integrated Approach - Trefil, 5E

http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471769924.html

The Sciences: An Integrated Approach, 5th Edition James Trefil ISBN: 0-471-76992-4 Paperback 624 pages October 2006 This product is not currently available for purchase from this website.

Description

The Sciences, 5th Edition integrates major concepts from physics, chemistry, astronomy, earth sciences, and biology to help anyone become science-literate. Even readers with little or no science background will find this unique book an indispensable guide to understanding the latest headlines, controversies, and scientific developments. The new edition keeps pace with the dynamic nature of the sciences by incorporating the most up-to-date discoveries in all five disciplines.

Table of Contents

Table of Contents Preface Science: A Way of Knowing The Ordered Universe Energy Heat And The Second Law Of Thermodynamics Electricity and Magnetism Waves And Electromagnetic Radiation Albert Einstein And The Theory of Relativity The Atom Quantum Mechanics Atoms In Combination: The Chemical Bond Materials and their Properties The Nucleus Of The Atom The Ultimate Structure Of Matter The Stars Cosmology The Earth And Other Planets Plate Tectonics Earth’s Many Cycles Ecology, Ecosystems, And The Environment Strategies Of Life The Living Cell Molecules of Life Classical And Modern Genetics The New Science Of Life Evolution Appendices Human Anatomy Units And Numbers The Geologic Time Scale Selected Physical Constants And Astronomical Data Properties Of The Planets The Chemical Element Glossary Credits Index

Physics Matters: An Introduction to Conceptual Physics, Laboratory Manual - Trefil

http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471261548,descCd-description.html

Laboratory Manual to Accompany Physics Matters: An Introduction to Conceptual Physics James Trefil, Robert M. Hazen, Robert Ehrlich, Ania Wyczalkowski ISBN: 0-471-26154-8 Paperback 166 pages June 2004 US $21.95 This price is valid for Colombia.

Description

Get hands-on experience with this Lab Manual! Designed to accompany Trefil’s Physics Matters, this Lab Manual contains 20 different labs covering major topics with common equipment. Written by authors who have vast experience in communicating science to general audiences, Physics Matters conveys the principles of physics in a manner that is understandable to the non-scientist. In a prose style that is clear, engaging, and contemporary, it pays particular attention to the relevance of physics in comprehending our modern technological society and the issues created by those technologies.

Table of Contents

Experiment One. Perception; Making Estimates and Measurement; Units. Experiment Two. Motion at Constant Velocity. Experiment Three. Motion at Constant Acceleration. Experiment Four. Forces- 1 Dimension. Experiment Five. Forces in 2-Dimensions. Experiment Six. Momentum Conservation. Experiment Seven. Torques. Experiment Eight. Work and Energy Conservation. Experiment Nine. Archimedes’ Principle. Experiment Ten. Radiant Heating and Cooling. Experiment Eleven. Simple Harmonic Motion. Experiment Twelve. Waves. Experiment Thirteen. Ohm’s Law and Electric Circuit Part 1. Experiment Fourteen. Electric Circuits Part 2, RC Decay. Experiment Fifteen. Magnetic Fields. Experiment Sixteen. Induction and Transformers. Experiment Seventeen. Reflection, Refraction, and Polarization of Light. Experiment Eighteen. Mirrors and Lenses. Experiment Nineteen. Atomic Spectra. Experiment Twenty. Nuclear Decay Simulation. Index.