FE AND NI IMPURITIES IN SYNTHETIC DIAMOND

dc.contributor.author	Meng Y.
dc.contributor.author	Newville M.
dc.contributor.author	Sutton S.
dc.contributor.author	Rakovan J.
dc.contributor.author	Mao H.-K.
dc.date.accessioned	2021-11-28T04:25:34Z
dc.date.available	2021-11-28T04:25:34Z
dc.date.issued	2003
dc.identifier	https://www.elibrary.ru/item.asp?id=14175974
dc.identifier.citation	American Mineralogist, 2003, 88, 10, 1555-1559
dc.identifier.issn	0003-004X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/32538
dc.description.abstract	Using synchrotron X-ray fluorescence (XRF) microanalysis, including XRF tomography, and X-ray absorption near-edge structure (XANES) analyses, the distribution, and nature of incorporation of Fe and Ni impurities in as-grown diamond crystals, synthesized under high-pressure and high-temperature (HPHT) conditions, have been characterized. We find significantly different behavior for Fe and Ni as impurities in diamond. Nickel is dispersed and sector-zoned, with concentrations in {111} growth sectors at least 3 times those in {100} sectors, whereas Fe exists in the form of micro-aggregates or clusters with no observable sector correlation. Fe K-edge XANES shows that Fe is oxidized in diamond and has a valence of 2+. Comparison of XANES spectra from numerous standard compounds indicates that Fe is very likely bonded with oxygen as FeO.
dc.subject	Diamond
dc.title	FE AND NI IMPURITIES IN SYNTHETIC DIAMOND
dc.type	Статья

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