PHZ3400 Phonons: Difference between revisions
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==Law of Dulong and Pettit: failure of classical physics== | ==Law of Dulong and Pettit: failure of classical physics== | ||
<math>C_{v} = \frac{\partial \epsilon (T)}{\partial T} = 3nk_{B}</math> | <math>C_{v} = \frac{\partial \epsilon (T)}{\partial T} = 3nk_{B}</math> | ||
-This is wrong at low temperatures | |||
==Quantization of sound waves: phonons== | ==Quantization of sound waves: phonons== | ||
Revision as of 09:11, 20 March 2009
Law of Dulong and Pettit: failure of classical physics
-This is wrong at low temperatures