Description: Prerequi- site(s): One of the following: PHYS 002B with B- or better, PHYS 040E with a C- or better, PHYS 041C with a C- or better; or consent of instructor. Covers properties of systems composed of many atoms arranged in a periodic lattice. Topics include crystal structure, symmetry, and diffraction; crystal cohesion; lattice dynamics; thermal properties; metallic proper- ties and the Fermi surface; band theory of metals and semiconductors; and collective excitations.