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Mechanisms of nitrogen aggregation in nickel- and cobalt-containing synthetic diamonds

Abstract:

We present a study of the point defects observed in as-grown and annealed synthetic diamonds using electron paramagnetic resonance (EPR) and infrared spectroscopy. The diamonds were grown by the temperature gradient HPHT method in a split sphere apparatus using Fe-Ni-C or Fe-Co-C solvent catalysts at 1700 K and 5.5 GPa. We report for the first time the observation of the nitrogen-vacancy (W15) and W33 EPR centres in as-grown and annealed nickel- and cobalt-containing diamonds. The generation ...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics
Role:
Author
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Publisher:
Elsevier Sequoia SA
Volume:
9
Issue:
3-6
Pages:
883-886
Publication date:
2000-01-01
DOI:
ISSN:
0925-9635
URN:
uuid:00768ab3-8ef7-4817-adba-50b61abb3742
Source identifiers:
25685
Local pid:
pubs:25685

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