[Wien] The meaning of colour in band structure plot

[Rocquefelte]

Dear Yurko,

The colors have a physical meaning only if you have executed "x irrep". 
In the case of SYMMORPHIC space group, irrep program allows you to have 
access to the irreducible representation for each eigenvalues along the 
k-path you have previously defined.
So to summarize, if your space group is symmorphic and if you have done :
x lapw1 -band
x lapw2 -band -qtl
x irrep

Then you can choose the to put icol = 4 in the case.insp file.

x spaghetti  --> lead to colors related to the irreducible representation.

Otherwise, the color will have no physical meaning.

Best Regards

Xavier

Yurko Natanzon a écrit :
> Dear Wien2k users, dear Prof. Blaha,
>
> Could you explain the meaning of colours in band structure plot
> produced by w2web?
> What bands with the same colour have in common?
>
> I've examined w2web code and the manual, and it seems that colours are
> just to make a plot more beautiful,
> and have no physical meaning. But I'd like to hear from more
> experienced users whether this is true.
>
> with best regards,
> Yurko
>
>
>