Madelung potential at atomic sites.

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asif_ali28
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Madelung potential at atomic sites.

#1 Post by asif_ali28 » Fri Apr 26, 2024 12:49 pm

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

fabien_tran1
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Re: Madelung potential at atomic sites.

#2 Post by fabien_tran1 » Mon Apr 29, 2024 2:16 pm

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).

asif_ali28
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Re: Madelung potential at atomic sites.

#3 Post by asif_ali28 » Mon Apr 29, 2024 4:52 pm

Hi,

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

Sincerely

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