In mechanical engineering, because solid materials are used in various situations from fundamental to application, understanding the properties of materials is highly important. Particularly, it is often desired to possess sound knowledge about thermal properties (thermal conductivity and specific heat) and optical properties based on understandings of the microscopic mechanisms that give rise to the macroscopic properties. Furthermore, it is important to make a right judgement on whether the theoretical framework one should employ toward a specific problem has to be quantum-mechanical or can be classical.
Students are expected to establish such understanding and ability by completing the contents of this course.
By completing this course, students will:
- Understand how microstructure of solid materials and their physical properties dominate their observable macroscopic properties
- Understand the characteristics of the resultant properties
- Have acquired knowledge and ability to rightly judge whether one can use classical theory or should rely on quantum theory for modeling material’s property in various engineering situations
Solid materials, phonon, specific heat, statistics, thermal properties, optical properties, nanomaterials
|✔ Specialist skills||Intercultural skills||Communication skills||Critical thinking skills||Practical and/or problem-solving skills|
This course consists of seven classes. Students should take his/her own lecture notes and self-study prior to and after each class with the "Reference books" listed below. Course materials will be uploaded to OCW-i before each class; students have to print them out on papers before each class so that they can readily see it during the class.
|Course schedule||Required learning|
|Class 1||Fundamentals of solid materials: Crystal structures and their expressions (Forms of interatomic bond, symmetry and Bravais lattice, crystal systems/point groups, close-packed structures, reciprocal lattice)||Learn fundamentals of solid materials and become able to explain the contents.|
|Class 2||Properties that arise from lattice (1): Lattice vibration and phonon (Speed of sound, mass-spring model, classification of phonon and phonon dispersion relation)||Learn lattice-related properties regarding lattice vibrations and phonons, and become able to explain the contents.|
|Class 3||Properties that arise from lattice (2): Specific heat and thermal conductivity (Classical model, Einstein model, Debye model, dependence of thermal conductivity on temperature)||Learn lattice-related properties regarding specific heat and thermal conductivity, and become able to explain the contents.|
|Class 4||Properties that arise from electron (1): Overview and classical descriptions (Wiedemann-Franz law, classical statistics, breakdown of classical model), quantum descriptions and resultant specific heat (Quantum statistics, Fermi sphere, electronic density of states, dependence of specific heat on temperature) Properties that arise from electron (2): Band theory ("Nearly-free electron" picture, Bloch function, emergence of bands)||Learn electron-related properties based on classical and quantum descriptions, and introductions of the band theory, become able to explain the contents.|
|Class 5||Properties that arise from electron (2: Continued): Band theory ("Tightly-bound electron" picture, group and phase velocities, dispersion relationships, effective mass) Optical properties: Dielectric materials (Beer's law, complex refractive index, classification of polarization, dielectric dispersion)||Learn electron-related properties described by the band theory and dispersion relations, and basis of the optical properties of dielectric materials, and become able to explain the contents.|
|Class 6||Optical properties: Dielectric materials (classical model of dielectric response, complex dielectric constant, optical reflectivity), Metals (Classical model for free-electron response, plasma frequency, dependence of optical reflectivity on wavelength)||Learn the classical models to describe optical properties of dielectric materials and their applications, and basis of the optical properties of metals, and become able to explain the contents.|
|Class 7||Optical properties: Metals (Momentum scattering time of electrons in metal, AC/DC conductivity, plasma oscillation, bulk plasmon and surface plasmon, dipolar plasmon resonance, depolarization coefficient and plasmon resonance conditions, examples of optical property control using metallic nanomaterials)||Learn optical properties of metals and their governing mechanisms mainly for plasma oscillations and plasmons, and become able to explain the contents.|
To enhance effective learning, students are encouraged to spend approximately 100 minutes for reviewing the class content after each class by referring to one’s notes and supplementary course materials.
See "Reference books, course materials, etc." below.
J. S. Blakemore, "Solid State Physics", Cambridge University Press. (for entire this course)
M. Fox, "Optical Properties of Solids", Oxford University Press. (for optical properties)
C. L. Tien and J. H. Lienhard, "Statistical Thermodynamics", Hemisphere Publishing Corp. (for reference)
We will give you exam questions to measure your understandings of the course contents taught, along with the problem & answer sheet in which you should fill in the answers by your handwriting. By the deadline, you have to scan it to a PDF and submit via online (details will be announced later).
Note: In this exam, your working with other people, showing your answer to other people, and seeing another people’s answer are prohibited. All problems have to be worked with by yourself.
For graduate students:
No prerequisites. (However, a registration to this class might not be approved in case a student has already obtained credits from other solid-state-physics-related classes of similar contents, because of potentially large overlaps in the contents depending on the course/department an attendee belongs to.)
For undergraduate students:
Because this is a graduate level course, the enrollment is not permitted for undergraduate students except cases when the subject of this course is highly related to his/her graduate thesis research. If one is an undergraduate student and wishes to be enrolled in this course, one first need to contact the lecturer of this course for an interview. The enrollment permission may be given based on the reasons explained in the interview.
Actual correspondences between "Course schedule" and "Class #" (see above) may be somewhat different from those given above depending on the situation of the progression, but the order of the contents taught will be kept as given above.