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.
REQUIREMENTS
1. Weekly problem sets [50%]
2. Midterm exam covering the fundamentals of magnetism [20%]
3. Final paper in which you will write a “review” article on a particular
topic of magnetics research along with a final presentation. (8~10 page
paper) [30%]
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