2025 (Current Year) Faculty Courses School of Materials and Chemical Technology Undergraduate major in Materials Science and Engineering
Solid State Properties II (Dielectric and Magnetic Materials
- Academic unit or major
- Undergraduate major in Materials Science and Engineering
- Instructor(s)
- Takuya Hoshina / Nobuhiro Matsushita
- Class Format
- Lecture (Face-to-face)
- Media-enhanced courses
- -
- Day of week/Period
(Classrooms) - 7-8 Mon (S7-202) / 7-8 Thu (S7-202)
- Class
- -
- Course Code
- MAT.C307
- Number of credits
- 200
- Course offered
- 2025
- Offered quarter
- 3Q
- Syllabus updated
- Mar 19, 2025
- Language
- Japanese
Syllabus
Course overview and goals
In the first half of the course, students will understand the dielectric properties of materials and learn how dielectric materials are utilized in electronic devices. Starting with the concept and definition of basic variables to describe dielectricity macroscopically, the lecture will explain the microscopic mechanism of dielectric polarization, which is the most important variable to understand dielectricity. The material science and applications related to piezoelectric, pyroelectric, and ferroelectric materials will then be introduced.
In the second half of the course, students will understand the origin of magnetism in materials and learn how magnetic materials are utilized in electronic devices. Students will understand the origin of magnetic moments from the basics of electromagnetism and quantum mechanics, and learn how to describe the magnetic interactions between magnetic moments and the behaviors of magnetic moments in a crystal. Topics also include magnetic anisotropy, magnetization processes, magnetic domain structures, and magnetic resonance, providing a basis for applying magnetic materials to electronic devices.
Course description and aims
The purpose of this course is to understand the fundamentals and applications of dielectric and magnetic materials.
Keywords
dielectrics, polarization, dielectric dispersion, complex dielectric constant, ferroelectricity, piezoelectricity,
magnetic material, angular momentum, Curie-Weiss law, magnetic anisotropy, magnetization process, magnetic domain structure, magnetic resonance
Competencies
- Specialist skills
- Intercultural skills
- Communication skills
- Critical thinking skills
- Practical and/or problem-solving skills
Class flow
To get a good understanding of the course contents, exercise problems are provided.
Course schedule/Objectives
| Course schedule | Objectives | |
|---|---|---|
| Class 1 | Macroscopic description of dielectric properties, dielectric properties under AC electric field |
Understanding the basic variables for macroscopic description of dielectric properties, and dielectric properties under AC electric field |
| Class 2 | Microscopic origin of dielectric polarization |
Understanding the microscopic origin of dielectric polarization |
| Class 3 | Dielectric dispersion |
Understanding of dielectric dispersion |
| Class 4 | Ionic polarization and crystal symmetry |
Understanding of ionic polarization and crystal symmetry |
| Class 5 | Ferroelectricity 1 |
Understanding of ferroelectricity |
| Class 6 | Ferroelectricity 2 |
Understanding of ferroelectricity |
| Class 7 | Dielectric polarization mechanism of barium titanate, design of dielectric materials |
Learn about the dielectric polarization mechanism of barium titanate and the design of dielectric materials |
| Class 8 | Reviewing of Paramagnetism and Band theory |
Derivation of paramagnetic susceptibility |
| Class 9 | Molecular magnetic field theory of ferromagnetic material |
Expressions of molecular magnetic field theory of ferromagnetic material and understanding of CurieｰWeiss's low |
| Class 10 | Molecular magnetic field theory of antiferromagnetic and ferrimagnetic material and diamagnetism |
Expressions of molecular magnetic field theory of antiferromagnetic and ferrimagnetic material and understanding of diamagnetism |
| Class 11 | Magnetic anisotropy |
Derivation of expression of uniaxial magnetic anisotropy in a polar coordinate system |
| Class 12 | Magnetic domain structure and magnetic wall |
Derivation of Magnetic domain wall width and a domain wall energy |
| Class 13 | Magnetization process and magnetic loss |
Understanding of Rotational magnetization and Analyses of magnetic losses |
| Class 14 | Magnetic resonance, applications of magnetic material |
Magnetization dynamics, Electron spin resonance, Ferro magnetic resonance, Magnetic device applications(GMR, Tunneling magnetic resistance) |
Study advice (preparation and review)
To enhance effective learning, students are encouraged to spend approximately 30 minutes preparing for class and another 30 minutes reviewing class content afterwards (including assignments) for each class.
Textbook(s)
Unspecified.
Reference books, course materials, etc.
C.Kittel, Introduction to solid state physics, Wiley.
Keizo Ohta. Fundamentals of Magnetics. Kyoritsu-shuppan.
Soshin Chikazumi. Physics of Ferromagnetism. Oxford University Press.
Evaluation methods and criteria
1) Grades will be based on final exam.
2) Students may be assessed on their understanding of the class contents.
Related courses
- MAT.A203 ： Quantum Mechanics of Materials
- MAT.C202 ： Crystal and Phonon
- MAT.C203 ： Statistical Mechanics (Ceramics course)
- MAT.C302 ： Spectroscopy
Prerequisites
Students must have successfully completed a class of "Solid State Properties I (Introduction and Semiconductor) ", "Fundamentals of Electromagnetism" and ”Crystal and Phonon” or have equivalent knowledge.