檢視 $negfacousticphonon 的原始碼

$negfacousticphonon is the command to setup the related parameters of acoustic phonon scattering.<br>
The equation of acoustic phonon scattering:
 <math>W_{ac}(k)=\frac{2\pi k_{B}T}{\hbar\rho\nu_{ac}^{2}}D_{ac}I_{if}N_{1D}(E_{k})</math><br>
Example:
 $negfacousticphonon
 <math>D_{ac}</math> <math>\nu_{ac}</math><br>

 $negfacousticphonon
 1.248e-18 5.22e3
 # Dac vac