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Madelung potential at atomic sites.

Posted: Fri Apr 26, 2024 12:49 pm
by asif_ali28
Hello everyone,

I am looking for Madelung potential calculated at the atomic site for a given crystal structure. I could find the Ewald energy in OUTCAR, but no information on individual atomic sites.
Does VASP calculate this as well?

I need the Madelung potential to compare it with core-level shifts.

I would be grateful for any help or suggestions.

Thanking in advance.

Sincerely

Re: Madelung potential at atomic sites.

Posted: Mon Apr 29, 2024 2:16 pm
by fabien_tran1
Hi,

The Madelung potential is not calculated, however there is an approximation that is printed in OUTCAR (below the line "the norm of the test charge is") when ICORELEVEL=0 (which is the default). It seems that the program VESTA also offers the possibility to calculate the Madelung potential (scroll down at https://jp-minerals.org/vesta/en/features.html and see https://www.youtube.com/watch?v=BFLMjQqDFx8 for explanations).

Re: Madelung potential at atomic sites.

Posted: Mon Apr 29, 2024 4:52 pm
by asif_ali28
Hi,

Thank you for the response. I am able to calculate it now.

Sincerely