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Electron configuration of the substitutional nitrogen defect in diamond
Materials Science · Submitted 9 Apr 2014
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim It is suggested that the substitutional nitrogen in diamonds bonded to three of the surrounding carbon atoms instead of four.
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The abstract, sentence by sentence
It is suggested that the substitutional nitrogen in diamonds bonded to three of the surrounding carbon atoms instead of four. This proposed electron configuration of the defect is deduced from previous experiments and theoretical considerations. Notably, the 1344 cm-1 band, characteristics of the substitutional Nitrogen, is independent of the isotopic change of Nitrogen but depend on the isotopic change of Carbon. The well established NV centre should not be stable if Nitrogen is bounded to four of the surrounding Carbon. Additional support comes from the substantially bigger size of the single substitutional nitrogen atom indicating loan pair electron. The proposed configuration of the substitutional Nitrogen was also tested by using a simple force constant model. Replacing force constant of C-N with 2/3 C-C:1/3 C=C reproduces the 1344 cm-1 band.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | It is suggested that the substitutional nitrogen in diamonds bonded to three of the surrounding carbon atoms instead of four. | contribution 0.50 | 0.22 | 0.85 | hedged possibility 0.94 |
| s1 | This proposed electron configuration of the defect is deduced from previous experiments and theoretical considerations. | method 0.39 | 0.36 | 0.06 | asserted 0.85 |
| s2 | Notably, the 1344 cm-1 band, characteristics of the substitutional Nitrogen, is independent of the isotopic change of Nitrogen but depend on the isotopic change of Carbon. | result 0.86 | 0.31 | 0.09 | asserted 1.00 |
| s3 | The well established NV centre should not be stable if Nitrogen is bounded to four of the surrounding Carbon. | interpretation 0.79 | 0.15 | 0.08 | asserted 0.88 |
| s4 | Additional support comes from the substantially bigger size of the single substitutional nitrogen atom indicating loan pair electron. | interpretation 0.76 | 0.23 | 0.05 | asserted 0.76 |
| s5 | The proposed configuration of the substitutional Nitrogen was also tested by using a simple force constant model. | method 0.91 | 0.79 | 0.04 | asserted 0.99 |
| s6 | Replacing force constant of C-N with 2/3 C-C:1/3 C=C reproduces the 1344 cm-1 band. | result 0.72 | 0.79 | 0.09 | asserted 1.00 |
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The paper
Original abstract
It is suggested that the substitutional nitrogen in diamonds bonded to three of the surrounding carbon atoms instead of four. This proposed electron configuration of the defect is deduced from previous experiments and theoretical considerations. Notably, the 1344 cm-1 band, characteristics of the substitutional Nitrogen, is independent of the isotopic change of Nitrogen but depend on the isotopic change of Carbon. The well established NV centre should not be stable if Nitrogen is bounded to four of the surrounding Carbon. Additional support comes from the substantially bigger size of the single substitutional nitrogen atom indicating loan pair electron. The proposed configuration of the substitutional Nitrogen was also tested by using a simple force constant model. Replacing force constant of C-N with 2/3 C-C:1/3 C=C reproduces the 1344 cm-1 band.
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