This course focuses on the basic characteristics of dielectric and magnetic with macroscopic and microscopic theories in dielectric and magnetic materials. The course enables students to understand phenomenon of polarization and magnetization and their related materials and application.
Dielectric and magnetic materials are used in many cases in present electric and electronic engineering, for example, dielectric materials are used as not only insulators for power cable but also gate insulator in MOSFET, magnetic materials are used as not only magnet core in transformer and coil but also magnetic recording.
By the end of this course, students will be able to:
1) Understand basic characteristics of dielectric and magnetic materials for electric and electronic engineering.
2) Understand nature of polarization and explain dielectric dispersion, complex dielectric constant, electric conduction mechanism in dielectric and insulator materials, and ferroelectricity.
3) Understand nature of magnetism and explain magnetization, magnetic moment, spin, diamagnetism, paramagnetism, and ferromagnetism.
dielectric materials, dielectric polarization, dielectric constant of gas and solid, frequency characteristics of dielectric polarization and complex dielectric constant, ferroelectricity and phase transition, magnetic materials, magnetization and magnetic moment, spin, diamagnetism, paramagnetism, and ferromagnetism
|Specialist skills||Intercultural skills||Communication skills||✔ Critical thinking skills||Practical and/or problem-solving skills|
|✔ ・Applied specialist skills on EEE|
Towards the end of class, students are given exercise problems related to the lecture given that day to solve. To prepare for class, students should read the course schedule section and check what topics will be covered. Required learning should be completed outside of the classroom for preparation and review purposes.
|Course schedule||Required learning|
|Class 1||Polarization and dipole of materials||Understand dipole, polarization, and dielectric constant|
|Class 2||Classification of polarization -electric polarization and dipole polarization-||Understand difference of permanent and induced dipoles. Compute electric and dipole polarizations|
|Class 3||Polarizability and dielectric constant||Understand internal field of Lorentz. Compute equation of Clausius-Mosotti|
|Class 4||Formation mechanism of polarization||Understand complex dielectric constant and dielectric loss tangent|
|Class 5||Dielectric dispersion||Understand response behavior of electric and dipole polarizations|
|Class 6||Evaluation of dielectric relaxation time, ferroelectric materials||Understand the evaluation of thermal stimulated current and spontaneous polarization|
|Class 7||Electric conduction of solid dielectric materials||Compute the space charge limited current and Schottky injection|
|Class 8||Basic of magnetism -magnetization and magnetic moment-||Understand the relationship between magnetization and magnetic moment|
|Class 9||Basic of magnetism -magnetic moment in an atom (1)-||Understand from the viewpoint of electron wave|
|Class 10||Basic of magnetism -magnetic moment in an atom (2)-||Understand from the viewpoint of quantum mechanics|
|Class 11||Classification of magnetic materials -diamagnetism-||Understand the relationship between diamagnetism and superconducting material|
|Class 12||Classification of magnetic materials -paramagnetism-||Understand the temperature dependence of magnetic susceptibility of paramagnetism|
|Class 13||Classification of magnetic materials -ferromagnetism (1)-||Understand magnetization curve of ferromagnetism materials|
|Class 14||Classification of magnetic materials -ferromagnetism (2)-||Understand the ferromagnetism of metals and ferrimagnetism|
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
Iwamoto, Mitumasa. Electrical and Electronic Properties of Materials. Tokyo: Ohmsha; ISBN-978-4-274-51096-9. (Japanese)
Course materials will be uploated on OCW-i.
Iwamoto, Mitumasa. EE Text Electrical and Electronic Material Engineering. Tokyo: Ohmsha; ISBN-4-274-13307-9. (Japanese)
Students' knowledge of dielectric and magnetism properties of materials will be assessed.
Assessment is evaluated by intermediate (50%) and final (50%) reports.
Students must have successfully completed both Electricity and magnetism I (EEE.E201) and Electricity and magnetism II (EEE.D202) or have equivalent knowledge.