[Pw_forum] (no subject)
Paolo Giannozzi
giannozz at nest.sns.it
Mon Feb 4 15:16:31 CET 2008
Fernando César Lussani wrote:
> I'm trying to generate a LDA pseudopotential for vanadium [...]
> What kind of trick could I use to get a pseudopotential like
> this?
for an element like V it is usually easier and safer to produce
pseudopotentials with s and p semicore states in the valence.
If not, the nonlinear core correction is a must. d as local part
tends to produce "ghosts". And finally:
> 4S 4 0 2 0 2.0 2.0
> 3D 3 2 3 0 1.8 1.8
should be
4S 1 0 2 0 2.0 2.0
3D 3 2 3 0 1.8 1.8
(pseudo S corresponds to N=1, pseudo D to N=3; P would be 2).
All this and more is explained in the documentation.
Paolo
--
Paolo Giannozzi, Democritos and University of Udine, Italy
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