Physics 460
Condensed Matter Physics
Prof. Gregory J. MacDougall
Lecture Notes
Lecture 1 - The Drude model
Lecture 2 - Sommerfeld Theory
Lecture 3 - Bonding in solids
Lecture 4 - Repeating structures and Bravais lattices
Lecture 4, pdf version
Lecture 5 - The reciprocal lattice
Lecture 6 - Lattice planes and diffraction techniques
Lecture 7 - Phonons: Einstein model, Debye model and the monatomic chain
Lecture 8 - Phonons: the diatomic chain, higher dimensions and measurement with neutrons
Lecture 9 - Electrons in a periodic potential: the nearly-free electron model
Lecture 10 - Electrons in a periodic potential: the tight-binding model
Lecture 11 - Tight-binding cont'd and the Kronig-Penney model
Lecture 12 - Metallicity, Fermi surfaces and failures of the independent electron approximation
Lecture 13 - Optical properties, photoemission and electrons in a magnetic field
Lecture 14 - Semiconductors: Band gaps, electrons and holes
Lecture 15 - Semiconductors: Statistical mechanics, Law of Mass Action, and impurities
Lecture 16 - Semiconductors in the extrinsic limit
Lecture 17 - Semiconductor devices: quantum wells, junctions, diodes and transistors.
Lecture 18 - Introduction to magnetism: definitions, origin of moments and Pauli paramagnetism
Lecture 19 - Magnetism: isolated atoms and Hund's rules
Lecture 20 - Magnetism: exchange, Larmor diamagnetism and Curie paramagnetism
Lecture 21 - Magnetism in real materials: crystal fields, orbital quenching and interactions
Lecture 22 - Mean field theory, order and the Curie-Weiss formula
Lecture 23 - Types of magnetic order, neutron diffraction and domains.
Lecture 24 - Superconductivity: an experimental survey
Lecture 25 - Superconductivity: London equations and Ginzburg-Landau
Lecture 26 - Superconductivity: BCS Theory
Supplemental Information
P.W. Anderson's seminal article, More Is Different.
Click here for tables containing measured values of parameters relevant to Drude and Sommerfeld calculations. (From Ashcroft & Mermin, and Simon.)
Derivation of the Click Poisson Summation Formula.
List of effective moments extracted from magnetization measurements, to demonstrate the quenching of atomic angular momentum in 3d transition metals. (From Blundell's book on Magnetism in Condensed Matter, page 48.)
