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]
[[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

Vibrational modes of a one-dimensional chain

Sound waves - acoustic modes

One dimensional diatomic chain: optical modes