科目名 Course Title Crystallographic Properties of Solids [結晶物性 E] 講義題目 Subtitle 責任教員 Instructor 石政 勉 [Tsutomu ISHIMASA] (大学院工学研究院) 担当教員 Other Instructors 開講年度 Year 2013 時間割番号 Course Number (E3) 092031 (38007) 開講学期 Semester 2学期 単位数 2 Number of Credits 補足事項 Other Information キーワード Key Words Electron diffraction, electron microscopy, crystal structure, lattice imperfection, and quasicrystal 授業の目標 Course Objectives This course is aimed at achieving an understanding of electron diffraction and microscopy, and their application to analysis of crystallographic properties of solids. After the review on elementary crystallography, diffraction of high energy electron by a crystal is discussed based on the following two theories; kinematical theory and dynamical theory of electron diffraction. As an example of the application, recent development on quasiperiodic crystals, namely quasicrystals, will be presented. Students who intend to study the following subjects are welcome. 到達目標 Course Goals (1) Crystallography (2) Electron diffraction and microscopy (3) Application to real crystal structures 授業計画 Course Schedule 1.Structure of ideal crystals Periodicity, symmetry and crystal structure 2.Lattice imperfections in a real crystal Vacancy, interstitial atom, dislocation, stacking fault, planar defect, ordered and disordered lattices 3. Electron diffraction in perfect crystal 3-1. Atomic scattering factor and crystal structure factor 3-2. Kinematical theory of electron diffraction 3-3. Dynamical theory of electron diffraction 4. Electron microscopy of lattice imperfections 4-1. Bright and dark-field imaging, diffraction contrast 4-2. High resolution imaging 5. Structural properties of quasicrystals 5-1. Local and global properties, quasiperiodicity 5-2. Structure analysis of a quasicrystal 5-3. Superlattice ordering, phason strain and random tiling model 準備学習(予習・復習)等の内容と分量 Homework 1 hour review for 1 lecture. 成績評価の基準と方法 Grading System based on attendance (30%) and final exam or report (70 %). テキスト・教科書 Textbooks 講義指定図書 Reading List 参照ホームページ Websites 研究室のホームページ Website of Laboratory 備考 Additional Information