$calculatekp

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


$calculatekp
all
θ
ϕ
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 Δ1  Δ2  Δ3 a c c11 c12 c13 c33 c44 c66
Weighting Δ1  Δ2  Δ3 a c c11 c12 c13 c33 c44 c66
Weighting Δ1  Δ2  Δ3 a c c11 c12 c13 c33 c44 c66
Weighting Δ1  Δ2  Δ3 a c c11 c12 c13 c33 c44 c66
..... (n layers)
D1 D2 D3 D4 D5 D6
D1 D2 D3 D4 D5 D6
D1 D2 D3 D4 D5 D6
D1 D2 D3 D4 D5 D6
.....(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 Δ1 Δ2 Δ3 a c c11 c12 c13 c33 c44 c66 D1 D2 D3 D4 D5 D6 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
Δ1(2) =Δ1(2)*Weighting2+Δ1(5)*(1Weighting2)

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.

θ, ϕ setting in Epitaxial Layer.
After modifying the parameters, you need to press number 5 to update the data.

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.