2006
DOI: 10.1070/pu2006v049n05abeh005848
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Abstract: We examine possible mechanisms for graphitization at dislocation cores in diamond, both as an explanation for brown coloration in natural brown diamond and as a model for annealing in amorphous carbon materials. We find a metastable structure for the 90 • partial dislocation core where bonds are broken in both single-and double-period structures leading to a row of paired sp 2 C atoms. We examine the effect of hydrogen and other impurities on this core structure both through direct interaction and potential ch… Show more

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Cited by 3 publications
(14 citation statements)
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“…As shown in Ref. [52] for the valence-delocalized [Fe 2.5+ Fe 2.5+ ] clusters, the antisymmetric DE interaction has the form H AS…”
Section: Introductionmentioning
confidence: 92%
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“…As shown in Ref. [52] for the valence-delocalized [Fe 2.5+ Fe 2.5+ ] clusters, the antisymmetric DE interaction has the form H AS…”
Section: Introductionmentioning
confidence: 92%
“…H 1X mixes the AndersonHasegawa DE levels E 0 AE ðS; MÞ and E 0 AE ðS 0 ¼ S AE 1; M 0 ¼ M AE 1Þ fE 0 AE ðS; MÞ and E 0 Ç ðS; M 0 ¼ M AE 1Þg with different M. This mixing leads to the antisymmetric DE contributions to the spin canting, effective hyperfine fields on nuclei and ZFS [52].…”
Section: Introductionmentioning
confidence: 94%
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