8 band k.p model

[rezaoliaee]

hi ,
I am working on bandstructure of AlxGa1-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 Al0.25Ga0.75As/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, whats 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, whats 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).