Question

Mean energy in the Debye calculation?

Answer 1

The Debye frequency (Symbol: {\displaystyle \omega _{Debye}} or {\displaystyle \omega _{D}}) is a parameter in the Debye model. It refers to a cut-off angular frequency for waves a harmonic chain of masses, used to describe the movement of ions in a crystal lattice and more specifically, to correctly predict the heat capacity in such crystals to be constant for high temperatures (Dulong-Petit law). The term was first introduced by Peter Debye in 1912.[1]