"$negferrortolerance" 修訂間的差異
出自 DDCC TCAD TOOL Manual
| (未顯示同一使用者於中間所作的 4 次修訂) | |||
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| − | $negferrortolerance is the command to setup the tolerance for the program to get converged. And the second term is the amplitude of the virtual wave. |
+ | $negferrortolerance is the command to setup the tolerance for the program to get converged. And the second term is the amplitude of the virtual wave. |
| − | The virtual wave means that there is no electron wave before the system scattering, but the wave function can not be zero in the equation, so we give a virtual wave to load the scattering wave and complete the calculation. After subtracting the value of the virtual wave, the correct wave function value can be obtained.<br> |
+ | The virtual wave means that there is no electron wave before the system scattering, but the wave function can not be zero in the equation, so we give a virtual wave to load the scattering wave and complete the calculation. After subtracting the value of the virtual wave, the correct wave function value can be obtained. You can also use this function and set the parameter with our GUI version at the input box of "Error Tol" in GUI<br> |
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| + | $negferrortolerance |
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| + | error_tolerance virtual_amplitude |
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| + | |||
Example: |
Example: |
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$negferrortolerance |
$negferrortolerance |
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1.0e-6 1.0e27 |
1.0e-6 1.0e27 |
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| + | related commands: |
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| + | [[$ifsolvenegf]] |
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於 2019年6月18日 (二) 01:10 的最新修訂
$negferrortolerance is the command to setup the tolerance for the program to get converged. And the second term is the amplitude of the virtual wave.
The virtual wave means that there is no electron wave before the system scattering, but the wave function can not be zero in the equation, so we give a virtual wave to load the scattering wave and complete the calculation. After subtracting the value of the virtual wave, the correct wave function value can be obtained. You can also use this function and set the parameter with our GUI version at the input box of "Error Tol" in GUI
$negferrortolerance error_tolerance virtual_amplitude
Example:
$negferrortolerance 1.0e-6 1.0e27
related commands:
$ifsolvenegf
