spin orbit & LDA+U for f-electrons

Queries about input and output files, running specific calculations, etc.


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windiks
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spin orbit & LDA+U for f-electrons

#1 Post by windiks » Mon Jul 04, 2005 8:30 pm

Dear all,

I have problems to calculate spin orbit coupling with both the Dudarev and Liechtenste LSDA+U approaches for systems with f-electrons.
For example: Let's assume there two Ce3+ ion in the unit cell, which both have the electron configuration [Xe] 4f1.
When I apply both LSDA+U as well as the LDA+U approaches implemented in VASP 4.6 with a proper Hubbard U, the obtained atomic partial magnetic moments of the Ce3+ ions are around 1.0.
However, when I switch on the spin orbit coupling (LSORBIT = .TRUE.) the calculated sclar norms of the atomic partial magnetic moments are only 0.2

Provided VASP 4.6 has the capability to calculate spin orbit interactions for f-elements using DFT methods extended with Hubbard U: Which are the critical parameters one has to play with?

Thank you for your help.

Sincerely,
René Windiks
Last edited by windiks on Mon Jul 04, 2005 8:30 pm, edited 1 time in total.

support_vasp
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Re: spin orbit & LDA+U for f-electrons

#2 Post by support_vasp » Wed Sep 11, 2024 1:26 pm

Hi,

We're sorry that we didn’t answer your question. This does not live up to the quality of support that we aim to provide. The team has since expanded. If we can still help with your problem, please ask again in a new post, linking to this one, and we will answer as quickly as possible.

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