"Debye Temperature" is the temperature at which the highest-frequency mode (and hence all modes) are excited.
Applicable units are those of quantitykind:Temperature
http://en.wikipedia.org/wiki/Debye_model
"Debye Temperature" is the temperature at which the highest-frequency mode (and hence all modes) are excited.
$\Theta_D = \frac{\hbar\omega_D}{k}$, where $k$ is the Boltzmann constant, $\hbar$ is the reduced Planck constant, and $\omega_D$ is the Debye angular frequency.
http://www.iso.org/iso/catalogue_detail?csnumber=31897