"$negfsurfaceroughness" 修訂間的差異
出自 DDCC TCAD TOOL Manual
| 行 1： | 行 1： | ||
| − | $negfsurfaceroughness is the command to setup the related parameters of surface roughness scattering.<br> |
+ | $negfsurfaceroughness is the command to setup the related parameters of surface roughness scattering. You can also use this function and set the parameter with our GUI version at the place of "Scattering Parameters" in GUI<br> |
The equation of surface roughness scattering: |
The equation of surface roughness scattering: |
||
<math>W_{sr}(k)=\frac{2\pi}{\hbar}\{\frac{2U_{0}I_{if}f(\Delta)\sin[(k_{i}-k_{f})]\frac{\lambda}{2}}{k_{i}-k_{f}}\}^{2}\frac{N_{1D}(E_{k})}{\sigma}</math><br> |
<math>W_{sr}(k)=\frac{2\pi}{\hbar}\{\frac{2U_{0}I_{if}f(\Delta)\sin[(k_{i}-k_{f})]\frac{\lambda}{2}}{k_{i}-k_{f}}\}^{2}\frac{N_{1D}(E_{k})}{\sigma}</math><br> |
||
於 2019年6月14日 (五) 15:03 的修訂
$negfsurfaceroughness is the command to setup the related parameters of surface roughness scattering. You can also use this function and set the parameter with our GUI version at the place of "Scattering Parameters" in GUI
The equation of surface roughness scattering:
![W_{sr}(k)=\frac{2\pi}{\hbar}\{\frac{2U_{0}I_{if}f(\Delta)\sin[(k_{i}-k_{f})]\frac{\lambda}{2}}{k_{i}-k_{f}}\}^{2}\frac{N_{1D}(E_{k})}{\sigma}](/mediawiki/images/math/3/7/6/37609ec39c9ed8d28fda43e1aed32f28.png)
$negfsurfaceroughness(correlation length)
(bandgap difference)
Example:
$negfsurfaceroughness 2.0e-9 7.328e-19
related commands:
$ifsolvenegf, $negfifscattering, $negfoverlapcalculation
