# 8 band k.p model

1. Oct 27, 2009

### 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 .

2. Oct 29, 2009

### 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.

3. Nov 1, 2009

### rezaoliaee

hi,

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.

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4. Nov 1, 2009

### Dr Transport

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).

5. Aug 18, 2010

### 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.

6. Jul 13, 2012

### 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.