513.001 Molecular and Solid State Physics | |
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Einstein modelThe Einstein approximation for the phonon density of states is, D(ω) = 3nδ(ω - ω0) . Here n is the density of atoms, and δ is a Dirac delta-function. (a) Give an expression for the internal energy u in J/m³. (b) Give an expression for the phonon specific heat in this approximation. |