PHZ3400 Sound: Difference between revisions
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==One dimensional mono-atomic chain== | ==One dimensional mono-atomic chain== | ||
[Image:1D_normal_modes_(280_kB).gif|left|tumb|250px|Vibrational modes of a one-dimensional chain] | |||
==Sound waves - acoustic modes== | ==Sound waves - acoustic modes== | ||
==One dimensional diatomic chain: optical modes== | ==One dimensional diatomic chain: optical modes== | ||
Revision as of 11:17, 9 February 2009
Harmonic approximation: inter-atomic forces as springs
One dimensional mono-atomic chain
[Image:1D_normal_modes_(280_kB).gif|left|tumb|250px|Vibrational modes of a one-dimensional chain]