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Electron paramagnetic resonance of the N2V−defect in N15-doped synthetic diamond

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Green, Ben, Dale, Matthew W., Newton, Mark E. and Fisher, D. (2015) Electron paramagnetic resonance of the N2V−defect in N15-doped synthetic diamond. Physical Review B (Condensed Matter and Materials Physics), 92 (16). 165204 . doi:10.1103/PhysRevB.92.165204

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Official URL: http://dx.doi.org/10.1103/PhysRevB.92.165204

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Abstract

Nitrogen is the dominant impurity in the majority of natural and synthetic diamonds, and the family of nitrogen vacancy-type (NnV) defects are crucial in our understanding of defect dynamics in these diamonds. A significant gap is the lack of positive identification of N2V−, the dominant charge state of N2V in diamond that contains a significant concentration of electron donors. In this paper, we employ isotopically-enriched diamond to identify the EPR spectrum associated with 15 N2V− and use the derived spin Hamiltonian parameters to identify 14N2V− in a natural isotopic abundance sample. The electronic wave function of the N2V− ground state and previous lack of identification is discussed. The N2V− EPR spectrum intensity is shown to correlate with the H2 optical absorption over an order of magnitude in concentration

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Diamonds, Artificial -- Defects, Diamond crystals -- Defects, Electron paramagnetic resonance
Journal or Publication Title: Physical Review B (Condensed Matter and Materials Physics)
Publisher: American Physical Society
ISSN: 1098-0121
Official Date: 21 October 2015
Dates:
DateEvent
21 October 2015Published
21 October 2015Accepted
Volume: 92
Number: 16
Article Number: 165204
DOI: 10.1103/PhysRevB.92.165204
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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