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PHY 521: Condensed Matter Physics I
Prof. S. Teitel stte@pas.rochester.edu  Fall 2012
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  What is condensed matter physics? metals, Drude model, dc electric conductivity
 Lecture 2  Hall effect, magnetoresistance, ac electric conductivity, EM wave propagation in metals, plasma frequency
 Lecture 3  Thermal conductivity, WeidemannFranz law, thermoelectric effect, free electron wavefunctions with periodic boundary conditions
 Lecture 4  Sommerfeld model, quantum ground state of free electron gas, Fermi surface and Fermi energy, ground state energy, density of states, pressure, bulk modulus
 Lecture 5  Ideal fermi gas at finite temperature, temperature dependence of the chemical potential, specific heat of electron gas, transport properties within the Sommerfeld model
 Lecture 6  Magnetic properties: Pauli paramagnetism, Landau levels for orbital motion
 Lecture 7  Landau diamagnetism at T=0
 Lecture 8  de Haas  van Alphen effect, screening by the electron gas, ThomasFermi dielectric function, classical DebyeHuckle dielectric function
 Lecture 9  Lindhard dielectric function, Friedel (RudermanKittel) oscillations, Kohn effect
 Lecture 10  RKKY interaction and the spin glass, plasmons
 Lecture 11  Wigner crystal, Cooper pairs
 Lecture 12  Bravais lattices and crystal structures
 Lecture 13  Reciprocal lattice, Bragg and von Laue formulations of Xray scattering
 Lecture 14  Xray scattering from Bravias lattice with a basis, preview of electrons in a periodic potential: Bloch's theorem, energy gaps at Bragg planes
 Lecture 15  Electrons in a a periodic potential continued: Brillouin zones, Bornvon Karmen boundary conditions, Fourier transforms on a Bravais lattice, Schrodinger's equation for electrons in a periodic potential
 Lecture 16 Bloch's theorem more rigorously, crystal momentum and band index, reduced, repeated, and extended zone schemes for electronic band structure, average velocity of a Bloch electron state
 Lecture 17  Density of states, van Hove singularities, weak potential approximation for electron eigenstates, velocity near a Bragg plane
 Lecture 18  Band structure in the weak potential approximation, metals and insulators, Bravais lattice with a basis
The 2D Brillouin Zones in living color
 Lecture 19  Brillouin Zones and the Fermi surface in the weak potential approximation, tight binding approximation for band structure, the sband
 Lecture 20  Fermi surface in tight binding, hybridization of atomic orbitals, variational derivation of tight binding
 Lecture 21  Tight binding band structure for graphene
 Lecture 22  Spinorbit interaction, some discussion of real metals
 Lecture 23  Semiclassical equations of motion, Bloch oscillations, effective mass, holes
 Lecture 24  Motion in perpendicular electric and magnetic fields
 Lecture 25  Hall effect and magnetoresistance from closed and open orbits
 Lecture 26  Normal modes of ion lattice vibration, acoustic and optical modes
 Lecture 27  The BornOppenheimer approximation and the BohmStaver relation for the speed of sound, the electronphonon interaction
 Lecture 28  Quantization of ion lattice vibrations, Debye model for specific heat due to lattice vibrations, electronphonon scattering and Bloch's T^{5} law for metalic resistivity

