檢視 $useBTBT 的原始碼

Modeling the band to band tunneling (BTBT) with the BTBT formalism. The band to band tunneling rates are decided by
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<math> G = a \times |E|^{p} \times exp\left( - \frac{b}{|E|} \right) +a2 \times |E|^{p2} \times exp\left( - \frac{b2}{|E|} \right) </math>
  
The unit of b is mV/cm 
The unit of a is <math>cm^{-3}s^{-1}</math>

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For example: 
 $useBTBT 
 a b p a2 b2 p2 
 a b p a2 b2 p2 
 a b p a2 b2 p2 
 a b p a2 b2 p2
 ...
 ...
 ... N layers

In each layer, you will need to set the a b p coefficients. 
If you don't want to consider BTBT in this layer. please set a and a2 0.0