"$negfsurfaceroughness" 修訂間的差異
出自 DDCC TCAD TOOL Manual
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$negfsurfaceroughness |
$negfsurfaceroughness |
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| − | <math>\lambda</math> <math>U_{0}</math><br> |
+ | <math>\lambda</math> (correlation length) <math>U_{0}</math> (bandgap difference)<br> |
Example: |
Example: |
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$negfsurfaceroughness |
$negfsurfaceroughness |
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2.0e-9 7.328e-19 |
2.0e-9 7.328e-19 |
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| − | #colength U0 |
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related commands: |
related commands: |
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[[$ifsolvenegf]], [[$negfifscattering]], [[$negfoverlapcalculation]] |
[[$ifsolvenegf]], [[$negfifscattering]], [[$negfoverlapcalculation]] |
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於 2018年7月30日 (一) 09:27 的修訂
$negfsurfaceroughness is the command to setup the related parameters of surface roughness scattering.
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
