3. Lattice and crystalline structures (8,10,15,17, 24(1h exercises) Oct 2025)
Section outline
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Introduction to lattice structures: Bravais lattices and crystalline structures in real space. Lattices with basis (generalities; examples about the conventional cells of the cubic lattices; other relevant examples: diamond, graphene, graphite). Packing fraction.
Other examples of Bravais lattices with basis: zincblende, rocksalt, wurzite (one slide). Wigner-Seitz cells.
Reciprocal lattices. Families of lattice planes. Miller indices.
Brillouin zone.
X-ray diffraction: Bragg and von Laue. Structure factor.
[Ashcroft & Mermin, Ch. 4, 5, 6]
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Opened: Wednesday, 15 October 2025, 11:00 AMCloses: Wednesday, 14 October 2026, 12:00 AM