2023 Faculty Courses School of Materials and Chemical Technology Undergraduate major in Materials Science and Engineering
Dielectric Materials Science
- Academic unit or major
- Undergraduate major in Materials Science and Engineering
- Instructor(s)
- Takuya Hoshina
- Class Format
- Lecture (Face-to-face)
- Media-enhanced courses
- -
- Day of week/Period
(Classrooms) - 5-6 Tue (S7-202) / 5-6 Fri (S7-202)
- Class
- -
- Course Code
- MAT.C306
- Number of credits
- 200
- Course offered
- 2023
- Offered quarter
- 2Q
- Syllabus updated
- Jul 8, 2025
- Language
- Japanese
Syllabus
Course overview and goals
This lecture starts from the introduction of some basic quantities used for describing dielectric property of substances such electric field, electric displacement, polarization, dipole momentum etc. The polarization is the most important concept in the physics of dielectrics. Polarization mechanisms including frequency dispersion are explained in detail. For understanding electronic polarization, the concept of local field should be explained using classical Lorenz local field theory. The Clausius-Mossotti relation is explained for understanding microscopic electronic polarization and macroscopic dielectric constant. In the latter part in the lecture, frequency dispersion of polarization mechanism is explained, and applications of piezoelectric, pyroelectric and ferroelectric materials are introduced.
Course description and aims
The purpose of this lecture is to understand the basic concept and applications of ceramic dielectrics by learning some important physical constants to describe dielectric phenomenon. Furthermore, this lecture tri to educate students to think the applications of dielectric materials using knowledge of polarization mechanisms based on material science.
Keywords
dielectrics, polarization, dielectric dispersion, complex dielectric constant, ferroelectricity, piezoelectricity
Competencies
- Specialist skills
- Intercultural skills
- Communication skills
- Critical thinking skills
- Practical and/or problem-solving skills
Class flow
Lecture style is a normal classroom lecture. Lecture materials are provided as needed
Course schedule/Objectives
| Course schedule | Objectives | |
|---|---|---|
| Class 1 | Classification of materials in terms of electric conductivity and some basic quantities | Understanding classification of materials in terms of electric conductivity and some basic quantities |
| Class 2 | Classification of polarization: electronic, ionic, dipole and interfacial polarizations | Understanding classification of polarization |
| Class 3 | Electric field in dielectrics and external field, Lorenz field | Electric field in dielectrics and external field, Lorenz field |
| Class 4 | Electronic polarization and electronic polalizability | Understanding electronic polarization and electronic polalizability |
| Class 5 | Clausius-Mossotti relationship | Understanding Clausius-Mossotti relationship |
| Class 6 | Complex dielectric constant and equivalent circuit of dielectrics | Understanding complex dielectric constant and equivalent circuit of dielectrics |
| Class 7 | Electronic polarization and its frequency dependence | Understanding electronic polarization and its frequency dependence |
| Class 8 | Ionic polarization and its frequency dependence | Understanding ionic polarization and its frequency dependence |
| Class 9 | Dipole polarization and its frequency dependence | Understanding dipole polarization and its frequency dependence |
| Class 10 | Interfacial polarization and its frequency dependence | Understanding interfacial polarization and its frequency dependence |
| Class 11 | Ferroelectrics | Understanding of ferroelectrics |
| Class 12 | Piezoelectrics | Understanding of piezoelectrics |
| Class 13 | Applications of dielectrics | Understanding of dielectric and ferroelectric applications |
| Class 14 | Dielectric polarization mechanism of barium titanate and other dielectric materials | Understanding the dielectric polarization mechanism of barium titanate and other dielectric materials |
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.
They should do so by referring to textbooks and other course materials.
Textbook(s)
Not specified
Reference books, course materials, etc.
Introduction to solid state physics, C.Kittel, Wiley
Evaluation methods and criteria
Grading will be decided based on the final exam.
Related courses
- MAT.C202 ： Crystal and Phonon
- MAT.C302 ： Spectroscopy
Prerequisites
Not specified
Contact information (e-mail and phone) Notice : Please replace from ”[at]” to ”@”(half-width character).
hoshina.t.aa[at]m.titech.ac.jp
Office hours
Afternoon of the lecture date