- #1
cozycoz
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I'm to get the density of states of 1-dim linear phonons, with N atoms. I think it's a lot similar to that of 1-dim electrons, except that two electrons are allowed to be in one state by Pauli exclusion principle. To elaborate,
##dN=\frac{dk}{\frac{2π}{a}}=\frac{a}{2π}dk## for phonons,
##dN=2⋅\frac{dk}{\frac{2π}{a}}=\frac{a}{π}dk## for electrons.
But in Kittel's solid state physics, the latter is described as a phonon case. What's wrong with my procedure?
##dN=\frac{dk}{\frac{2π}{a}}=\frac{a}{2π}dk## for phonons,
##dN=2⋅\frac{dk}{\frac{2π}{a}}=\frac{a}{π}dk## for electrons.
But in Kittel's solid state physics, the latter is described as a phonon case. What's wrong with my procedure?