"$QMstart" 修訂間的差異
出自 DDCC TCAD TOOL Manual
Jameshuang (對話 | 貢獻) (已建立頁面，內容為 "The qmstart and qmdepth is defining the region to solve the schrodinger equation. Since the eigen solver requires a much large memory because it solves all eigen fun...") |
Jameshuang (對話 | 貢獻) |
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<big><big>'''example'''</big></big> |
<big><big>'''example'''</big></big> |
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| − | $ |
+ | $QMstart 200.0 |
| − | $ |
+ | $QMdepth 500.0 |
| − | + | The qmstart always goes with qmdepth. the unit is Å. The example above is the solve the schrodinger equation between 200Å ~ 500Å. If the wave function extends to the computing window it will be removed. |
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於 2017年8月15日 (二) 15:13 的修訂
The qmstart and qmdepth is defining the region to solve the schrodinger equation. Since the eigen solver requires a much large memory because it solves all eigen functions and eigenvalues. Therefore, it is usually not suggested to solve the schrodinger equation in the whole windows. We will only suggest user to solve the schrodinger equation in the mqw regions or MOSFET oxide semiconductor interface.
example
$QMstart 200.0 $QMdepth 500.0
The qmstart always goes with qmdepth. the unit is Å. The example above is the solve the schrodinger equation between 200Å ~ 500Å. If the wave function extends to the computing window it will be removed.
