Phonon density of states for bcc tungsten

D(ω) [1015 s/rad m-3]

ω [1012 rad/s]

The atomic density is taken to be 6.31×1028 m-3. Each atom has three degrees of freedom so the integral over all frequencies is 3×6.31×1028 m-3. The data is from doi: 10.1007/b19988.

T = 298 K