PHZ3400 Phonons

From PhyWiki
Jump to navigation Jump to search

Lattice vibrations: (classical) sound waves

Harmonic approximation: inter-atomic forces as springs

One dimensional mono-atomic chain

Sound waves - acoustic modes

One dimensional diatomic chain: optical modes

Law of Dulong and Petit: failure of classical physics

Quantization of sound waves: phonons

Thermodynamics of phonons

Experimental probes of phonons