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Non-relativistic Pseudopotentials

Posted: Thu Mar 21, 2013 5:16 pm
by annagarden
Dear all,

I would like to do some calculations comparing a relativistic and non-relativistic treatment of the metals Pt and Ir. To my knowledge, the standard pseudopotentials used in VASP (both PAW and US-PP) are relativistic. I see that it is possible to use the pseudopotential generation program to make a non-relativistic version, however this seems to be rather difficult for a novice. Does anyone have a non-relativistic pseudopotential for these two metals?

Thanks in advance,

Anna

Non-relativistic Pseudopotentials

Posted: Fri Mar 22, 2013 6:33 pm
by admin
to compare relativistic to non-relativistic results, please simply do 2 self-consistent calculations, one with and one without spin-orbit coupling

Non-relativistic Pseudopotentials

Posted: Tue Mar 26, 2013 12:30 pm
by annagarden
Thank you for your answer. But, my understanding is that pseudo-poetntitals for the heavier atoms, such as Pt and Au, include relativistic effects for the inner electrons even when doing regular DFT/GGA calculations. Is that not correct? I am interested in studying the importance of those relativistic effects for the inner electrons, without including
spin-orbit coupling for the valence electrons.

Thanks,

Anna

Non-relativistic Pseudopotentials

Posted: Tue Mar 26, 2013 6:03 pm
by alex
Hi Anna,

you might have to pursuade Georg to create such PPs or just go all electron.

Cheers,

alex

Non-relativistic Pseudopotentials

Posted: Tue Apr 02, 2013 12:12 pm
by annagarden
Hi Alex,

I suspected that may be the case. Thanks for your reply!

Cheers,

Anna