Posted by Sean on March 15, 2013, 7:05 pm, in reply to "Re: The Debye calculation"
That's great thanks! Also, on page 13 it says that Debye restricted the number of modes to the number of degrees of freedom, which is 3 x the number of atoms, but why is it not 6 x if you include 3 degrees of freedom for the different components of momentum, plus the 3 degrees of freedom for the x, y and z directions? Are the momentum components constrained in some way? 
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