[Wien] Can I calculate the velocity of electrons V(kx, ky, kz) by wien2k?

[Bahram Abedi]

Dear  wien  users,

Hello. As part of my thesis I need the electronic velocity of some bulk
metals in reciprocal space:

                                        V(kx, ky, kz) = ?

I tried to differentiate the calculated band structure of Wien2k with
respect to " K"  but I had the following problems:

1.       I can't realize what the direction of each calculated band is.

2.       I tried the Xcrysden and chose some directions for k_path
selections in the reciprocal and direct conventional cells, but I don't know
whether this is allowed or how many of such paths I should choose.

I also studied the Fortran files of BoltzTrap, which maybe uses the similar
calculations, but I could not find out how it does.

I will be very grateful if somebody guides me through this calculation of
velocity.

Bahram Abedi

Tarbiat Modares Univrsity, Tehran , Iran
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