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PHY 521/321: Condensed Matter Physics I
Prof. S. Teitel stte@pas.rochester.edu  Spring 2008
Lecture Notes
My hand written class lecture notes are being scanned and uploaded for you to view. Please be warned that these are the notes I prepare for myself to lecture from  they are not in general carefully prepared for others to read. I make no guarantees about their legibility, or that they are totally free of errors. I hope, nevertheless that you will find them useful. The lectures are uploaded as pdf files, so you will need Adobe Acrobat Reader in order to read them. You can download Acrobat Reader for free here.
The lecture note files correspond roughly to the material presented in a given day's lecture. But you may on occassion find the end of one day's lecture at the start of the file for the next day's lecture, so please look there if you think there might be something missing.
 Lecture 1  Introduction, metals
 Lecture 2  Drude model, dc conductivity, Hall effect
 Lecture 3  ac conductivity, EM wave propagation in metals, thermal conduction and WeidemannFranz law
 Lecture 4  Sommerfeld model, ideal gas of fermions, Fermi energy, density of states, ground state total energy, pressure and bulk modulus
 Lecture 5  Fermi gas at finite temperature, chemical potential and specific heat of electron gas
 Lecture 6  Transport properties of Sommerfeld model, Pauli paramagnetism
 Lecture 7  Electrons in a magnetic field, Landau levels, flux quantum
 Lecture 8  Density of states in a magnetic field, van Hove singularities, variation of Fermi energy
 Lecture 9  Ground state energy in a magnetic field, Landau diamagnetism, de Haas  van Alphen oscillations
Some improved notes on Landau diamagnetism can be found here.
 Lecture 10  Screening of Coulomb interactions in the electron gas, the ThomasFermi dielectric function
 Lecture 11  The Lindhard dielectric function, Friedel (or RuddermanKittel) oscillations, Kohn anomaly
 Lecture 11A  The RKKY interaction and spin glasses
 Lecture 12  Plasma oscillations, Wigner electron crystal
 Lecture 13  Cooper pairing
 Lecture 14  Bravais lattices, crystal structures
 Lecture 15  Reciprocal lattice, Xray scattering
 Lecture 16  Preview of electrons in a crystal, Xray scattering from Bravais lattice with a basis
 Lecture 17  Electrons in a crystal: qualitative arguments
 Lecture 18  Electrons in a crystal: boundary conditions and Fourier transforms on a Bravais Lattice, Bloch's theorem, reduced, extended and periodic zone schemes for the band structure, velocity of a Bloch electron
 Lecture 19  Density of states and van Hove singularities, the weak potential approximation for energy gaps, eigenstates, and velocity near a Bragg plane
 Lecture 20  Band structure in the weak potential approximation, metals and insulators
The 2D Brillouin Zones in living color!
 Lecture 21  Bravais lattice with a basis in weak potential approximation, Brillouin Zones and the Fermi surface in the weak potential approximation
 Lecture 22  The tight binding approximation for band structure
 Lecture 23  Tight binding band structure of graphene
 Lecture 24  Wannier functions, spinorbit interaction, semiclassical equations of motion
 Lecture 25  Motion in uniform electric and magnetic fields, effective mass, holes
 Lecture 26  The Hall effect
 Lecture 27  Lattice vibrations, normal modes, dispersion relations and polarizations
 Lecture 28  BohmStavier relation for the speed of sound

