$calculatekp

出自 DDCC TCAD TOOL Manual
前往: 導覽搜尋

$calculatekp is the command to solve 6x6 k.p Hamiltonian for nitride or wurtzite based wide bandgap materials.


$calculatekp
all
 \theta 
 \phi 
kx_nmax  ky_nmax dk 
A1 A2 A3 A4 A5 A6 A7  
A1 A2 A3 A4 A5 A6 A7
A1 A2 A3 A4 A5 A6 A7
A1 A2 A3 A4 A5 A6 A7
..... (n layers)
Weighting \Delta_1  \Delta_2  \Delta_3 a c c_{11} c_{12} c_{13} c_{33} c_{44} c_{66}
Weighting \Delta_1  \Delta_2  \Delta_3 a c c_{11} c_{12} c_{13} c_{33} c_{44} c_{66}
Weighting \Delta_1  \Delta_2  \Delta_3 a c c_{11} c_{12} c_{13} c_{33} c_{44} c_{66}
Weighting \Delta_1  \Delta_2  \Delta_3 a c c_{11} c_{12} c_{13} c_{33} c_{44} c_{66}
..... (n layers)
D_1 D_2 D_3 D_4 D_5 D_6
D_1 D_2 D_3 D_4 D_5 D_6
D_1 D_2 D_3 D_4 D_5 D_6
D_1 D_2 D_3 D_4 D_5 D_6
.....(n layers)
Weighting is usually defined as 1 if each layer's parameters are calculated by user or GUI program. 

However, if it is not equal to 1, all parameters such as \Delta_1 \Delta_2 \Delta_3 a c c_{11} c_{12} c_{13} c_{33} c_{44} c_{66} D_1 D_2 D_3 D_4 D_5 D_6 will be weighted by

 n_layer_parameters = Weighting(n_layer_parameters) + (1-Weighting)*last_layer_parameters  
For example, if we have 5 layers, and weighting of the second layer is 0.5, then
\Delta_{1} (2) =\Delta_{1} (2) *  Weighting_2  + \Delta_{1} (5) *  (1-Weighting_2)

The $calculatekp setting for 1D-DDCC in GUI interface
1.Press the kp and Polarization.
2.Press the Calculate kp.
$calculatekp will only appear in the input file if Calculate kp is pressed.
1d $calculatekp fig1.jpg
 \theta ,  \phi setting in Epitaxial Layer.
After modifying the parameters, you need to press number 5 to update the data.
1d $calculatekp fig2.jpg
Other parameters can be found in kp and Polarization.
Number 6 can modify"kx_nmax, ky_nmax, dk".
7.Press the kp table will show on Number 8.
8.Choose you need parameters,they will show on Number 9.
9.You can modify parameters in Number 9.
1d $calculatekp fig3.jpg