| 1.Crystal Structure |
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| (1) Periodic Arrays of Atoms |
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| (2) Fundamental Types of Lattices |
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| (3) Index System for Crystal Planes |
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| (4) Simple Crystal Structures |
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| (5) Direct Image of Atomic Structure |
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| (6) Non Ideal Crystal Structures |
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| In three dimensions the point symmetry groups require 14 fundamental types of lattices. |
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| Among these types, the students of this course explore briefly a few simple crystal structures of |
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| general interest. Then they understand the index system for crystal structures in order to |
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| specify a crystal plane. |
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| 2. Crystal Diffraction and the Reciprocal Lattice |
14.5 |
| (1) Diffraction of Waves by Crystals |
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| (2) Scattered Wave Amplitude |
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| (3) Brillouin Zone |
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| (4) Fourier Analysis of the Basis |
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| The students of this course examines the Bragg law, which tells us that the diffracted beams are |
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| found when θ and λ are matched. |
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| Further they are to analyze X-ray diffraction by means of the reciprocal lattice vectors and the |
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| Brillouin zone as a Wigner-Seitz cell in the reciprocal lattice. |
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