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New data on the nature of the EPR OK1 and N3 centers in diamond


Nadolinny, VA and Yuryeva, OP and Shatsky, VS and Stepanov, AS and Golushko, VV and Rakhmanova, MI and Kupriyanov, IN and Kalinin, AA and Palyanov, YN and Zedgenizov, D, New data on the nature of the EPR OK1 and N3 centers in diamond, Applied Magnetic Resonance, 36, (1) pp. 97-108. ISSN 0937-9347 (2009) [Refereed Article]

Copyright Statement

Copyright 2009 Springer

DOI: doi:10.1007/s00723-009-0012-8


The well-known diamond electron paramagnetic resonance (EPR) OK1 and N3 defects are discussed in the context of incorporation of heavy metal, supposedly Ti, in the double semivacancy and substitutional structures, respectively. X-ray phase analysis of inclusions of the growth medium, eclogite, in the diamonds under study shows an atypically high concentration of titanium compounds. To support proposed models, the hyperfine structure (HFS) from 13C in the OK1 center has been analyzed more precisely. The data obtained are consistent with attributing additional satellites around the main EPR lines to HFS from 47Ti and 49Ti. A double semivacancy model describes the directions of g and A tensor components of the OK1 center. The features of infrared and photoluminescence spectra related to the OK1/S1 and N3/440.3 nm centers are presented.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geochemistry
Research Field:Inorganic geochemistry
Objective Division:Mineral Resources (Excl. Energy Resources)
Objective Group:Mineral exploration
Objective Field:Diamond exploration
UTAS Author:Stepanov, AS (Mr Sasha Stepanov)
ID Code:95755
Year Published:2009
Web of Science® Times Cited:19
Deposited By:Centre for Ore Deposit Research - CODES CoE
Deposited On:2014-10-08
Last Modified:2014-11-10

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