QuantumATK Forum

General => News and Announcements => Topic started by: Roc2019 on June 11, 2020, 04:01

Title: Fermi velocity
Post by: Roc2019 on June 11, 2020, 04:01

Dear Sir,

 I know it is easy to obtian the fermi velocity at a specific k point from the tutorial. 
https://docs.quantumatk.com/manual/Types/calculateVelocity/calculateVelocity.html

However,  how to calculate and plot the Fermi verlocity in 2D and 3D BZ space like the attachment of MgB2 ?   

Thank you so much.

Title: Re: Fermi velocity
Post by: Tue Gunst on June 15, 2020, 10:02

Hi,
There is a FermiSurface analysis object:
https://docs.quantumatk.com/manual/Types/FermiSurface/FermiSurface.html

When opening the result in the Viewer analyzer in nanolab then open the "Fermi Surface" menu.
This will allow you to tick on "color by gradient" and choose a suitable colormap.
An example for Ruthenium of Fermi-surfaces and the contribution from individual bands can be seen here:
https://arxiv.org/abs/2001.02216