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PHY 521: Condensed Matter Physics I Prof. S. Teitel stte@pas.rochester.edu ---- Fall 2012

lecture 26

normal modes of ion lattice vibration, acoustic and optical modes

HW #6 due

lecture 27

Born-Oppenheimer approximation and the Bohm-Staver relation for the speed of sound, the electron-phonon interaction

lecture 28

quantization of ion lattice vibrations, Debye model for specific heat due to lattice vibrations, electron-phonon scattering and Bloch's T^{5} law for metalic resistivity

HW #7 due

last day of classes

reading period

final exams start

final exams end