A What is the charge range for two N vacancies in a defect crystal?

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The discussion centers on the charge range for two nitrogen vacancies in a defect crystal, with one vacancy typically exhibiting a charge range of [0,+3]. The inquiry raises the question of why the charge range for two vacancies is often still cited as [0,+3], despite a theoretical maximum charge of +6 based on chemistry principles. The participant references the nitrogen-vacancy center, noting that three electrons come from neighboring carbon atoms, one from the nitrogen atom, and one from an external source, totaling six electrons. Clarification is sought on whether the [0,+3] notation aligns with this understanding. The conversation highlights a gap in the literature regarding the charge states of multiple vacancies in defect crystals.
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one vacancy have different charged state, for example one N vacancy range [0,+3], what the charge range for two N vacancies?
Hi, all
I am studying the defect formation energy calculations for defect crystal. One vacancy have different charged state, for example one N vacancy range [0,+3], what the charge range for two N vacancies? From chemistry, two N vacancies should be have max charge: +6. However, most reference still use the charge range [0,+3]. how to explain this ? Thank you
 
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I am not accustomed to your [0,+3]. Referring to https://en.wikipedia.org/wiki/Nitrogen-vacancy_center, I understand that at the vacancy 3 electrons come from neighboring C atoms, an electron pair come from N atom and frequently one electron come from outside to become ##NV^-## so total six electrons are involved. May I understand that your [0,+3] notation correspond to it ?
 

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