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Hello,
I am trying to constrain the total magnetic moment of a magnetic perovskite system using NUPDOWN.

I have had some success using it, but often the final magnetic moment strongly deviates from the assigned NUPDOWN. In these case, I remove any CHG, CHGCAR, and WAVECAR files and restart, but with no effect.

Are there scenarios where the NUPDOWN constraint isn't enforced?

Thank you,
Paul

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