[Wien] Mstar output result

[Gavin Abo]

*How to know which k points mean which high symmetry point?*

For this question, page 6 might be helpful to you in the document at the 
following link that has a screenshot identifying the Gamma point for 
GaAs by looking at the xmgrace band structure plot:

https://github.com/gsabo/WIEN2k-Docs/blob/main/WIEN2k_mstar_GaAs_tutorial.docx

Best Regards,

Gavin
WIEN2k user

On 1/23/2026 7:49 PM, uchit chaudhary wrote:
> Dear Dr. Rubel,
>
> I computed the effective mass of GaAs, but I did not get the result as 
> mentioned in the article. Moreover, I did calculation in two ways 1. 
> Just with x lapw1 and x lapwso 2. By generating kpath L-Gamma-X for 
> 100 points (x lapw1 -band and x lapso). I found the results are 
> different. What is the difference between the two calculations? Are 
> they the same?  Do they affect effective mass?
>
> I may not understand or read the output results correctly. So please 
> explain about the output to read. In the article it is written that 13 
> k points mean gamma point. How to know which k points mean which high 
> symmetry point? In the case of an indirect band gap, VBM is at Gamma 
> and CBM is at X. How to search for results in the output file in such 
> a case? Please explain in detail about extracting data from output files.
>
> Thank you for your time.
>
> Best regards,
> Uchit
> Wien2k user
>
>
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