charge state of defect

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zhu

charge state of defect

#1 Post by zhu » Mon Apr 12, 2010 9:40 am

Dear all,
How can I calculate the oxygen vacancy in -2 charge state in CuO? Is it correct to change the NELECT-tag by increasing two electrons? If so, how can I do to differ the frenkel defect between neutral copper vacancy and interstitial and negative copper vacancy and positive interstitial? They both have zero net charge.
Thank you!
Last edited by zhu on Mon Apr 12, 2010 9:40 am, edited 1 time in total.

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charge state of defect

#2 Post by admin » Mon Apr 12, 2010 10:34 am

as vasp is not based on localized wavefunctions, any charge added to the cell cannot be assigned to a particular site. You can however check where the charge is localized by having a look at the charge density differences of the converged, self-consistent charges of the neutral and the charged cells
Last edited by admin on Mon Apr 12, 2010 10:34 am, edited 1 time in total.

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