Electon Theory of Solids

Numbering Code U-ENG25 35121 LJ75 Year/Term 2022 ・ First semester
Number of Credits 2 Course Type Lecture
Target Year Target Student
Language Japanese Day/Period Tue.1
Instructor name KUROKAWA SHIYUU (Graduate School of Engineering Associate Professor)
Outline and Purpose of the Course This course focuses on the electron theory of solids and its applications. First, we review the concept of energy bands and the basics of band theory. Next, we discuss the fact that the electronic properties of solids such as metals and semiconductors can be explained by thinking in terms of band structure. Next, we gain an understanding of semiconductor properties based on information about bands. We also discuss the main structural characteristics of actual electronic devices such as p-n junctions. Finally, we explain the electronic states and electronic defect states of surfaces/interfaces with interrupted solid periodic potential.
Course Goals Understand concepts that are important in discussing electrons in solids (refer to syllabus). Understand general information concerning the electronic properties of metal and semiconductors.
Schedule and Contents Energy bands, 4 classes: Review free electron theory, the influence of periodic potential, the occurrence of energy gaps, Bloch’s theorem, one-dimensional energy bands, reduced zones, expanded zones, periodic zone schemes, reciprocal lattices and Brillouin zones.
Fermi surfaces and band structure of metal, 3 classes: Three-dimensional lattice Fermi surfaces and energy band diagrams, differences between metal and insulators, band structure of metal, rigid band model, Hume-Rothery rules.
Semiconductors, 4 classes: Movement of Bloch electrons in electric fields, concept of effective mass, movement of electron holes, Fermi level and carrier density, intrinsic semiconductors, extrinsic semiconductors, p-n junctions, carrier diffusion, operating principles of transistors.
Surface/interface/defect electronic states, 2 classes: Notation of electron arrangement in crystal surfaces, band structure of surfaces, work functions, surface electronic states.
Latest topics, 1 class: Discuss the latest research and technologies related to the content of the course. Review the course overall and confirm the degree of learning attainment.
Evaluation Methods and Policy Final test, quizzes
Course Requirements Students should have completed the solid state physics course offered by the Department of Physical Scienceand Engineering.
Study outside of Class (preparation and review) do exercises at course printouts
Textbooks Textbooks/References Printouts will be provided
References, etc. 固体物理学入門 (上)(下), , (丸善), ISBN:9784621076538
材料科学者のための固体電子論入門, 志賀正幸, , ISBN:9784753655533
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