Lattice heat capacity in 1D - related to ex nr 7

Dear All.

Please note that when integrating the total energy in 1D one might plug in DOS(omega) that is not simply equal to DOS(k), but instead  DOS(k)dk/domega, even DOS(k) is a constant in 1D. Assuming the temperature is low, dk/domega reduces to 1/velocity of sound. All in all, there is one extra constant to remember about.

WR,

Andrej.