Lattice and crystalline structures (19, 24, 26 Oct. 2022)
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. [19 Oct.]
Reciprocal lattices. Families of lattice planes. Miller indices.
Brillouin zone. [24 Oct.]
X-ray diffraction: Bragg and von Laue. Structure factor.
[Ashcroft & Mermin, Ch. 4, 5, 6]
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Test on lattices and crystalline structures Quiz