Solving 8 Band k.p Model for AlxGa1-xAs/GaAs QW

[rezaoliaee]

hi ,
I am working on bandstructure of Al_xGa_1-xAs/GaAs Quantum well with 8 band k.p method , but the results for CB,LH,HH and spin orbit splitting are different from other sources, for example CB energy for Al_0.25Ga_0.75As/GaAs
(barrier and well width=50 A) with my program is 49.83 meV whereas the correct result is 73.175 meV.I have worked about two weeks to troubleshoot every mistake that might be there in the program but I really don^,t know what is the source of problem ?
I will be so happy that someone help me or introduce the complete reference about the 8 band k.p method for Quantum wells .

 

[Dr Transport]

Post your code or reference to the theory that you are using, there are many 8\times 8 \vec{k}*\vec{p} variants. I can think of things you may not have done that will affect your answers significantly.

 

[rezaoliaee]

hi,
Thanks for your response.

I sent 4*4 valence band k.p model MATLAB files and articles that I have used.please response me, what's the problem of codes and if possible send me another MATLAB file that I can use it for compare.

Thanks.
Best regards.

 

[Dr Transport]

hi,
Thanks for your response.

I sent 4*4 valence band k.p model MATLAB files and articles that I have used.please response me, what's the problem of codes and if possible send me another MATLAB file that I can use it for compare.

Thanks.
Best regards.

It'll take me a little time to look thru everything. It has been a while since I looked at these problems (5-10 years or so).

 

[physicasam]

Hi, I am working on band structure of SC heterostructures using 8x8 K.P method and i do have some variations in experimental results. can anyone please help me by sending me his version of the program. Thank you.

 

[mrabeed]

Hi, I am trying to model a type II GaSb/InAs superlattice through the 8 band k.p method in MATLAB...I have studied general quantum mechanics but have no background in coding. I need to calculate the bandstructure and the CB,VB wavefunctions...can anyone provide me with a sample code for better understanding?? thank you.