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Assignment of 13C hyperfine interactions in the P1-center in diamond

Lookup NU author(s): Chloe Peaker, Mohammed Atumi, Professor Jon Goss, Professor Patrick Briddon, Dr Alton Horsfall, Dr Mark Rayson


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Diamond is an attractive material due to its extreme physical properties, and has recently found a key role in the developing field of quantum bits based upon long spin coherence times at room temperature. In both natural and synthetic diamond, nitrogen is probably the dominant impurity, with the simplest configuration being substitution of a host carbon atom, which has a single unpaired electron. This defect, seen as the P1 paramagnetic resonance center, has been the subject of detailed experimental investigation, revealing the extensive interaction of the electron spin with nearby C-13 nuclei. The interaction between the electron and nuclear spins is not only of importance in determining defect structure, but is of technological importance, such as in the main decoherence mechanism for NV centers, so understanding the coupling between C-13 and the electron spin is of critical importance. In this paper we assess the assignment of hyperfine interactions to the various carbon sites in the vicinity of the nitrogen atom. We show that although the experimentally derived model is correct in the main, the best fit to the calculated data requires reassignment of at least one of the carbon sites.

Publication metadata

Author(s): Peaker CV, Atumi MK, Goss JP, Briddon PR, Horsfall AB, Rayson MJ, Jones R

Publication type: Article

Publication status: Published

Journal: Diamond and Related Materials

Year: 2016

Volume: 70

Pages: 118-123

Print publication date: 01/11/2016

Online publication date: 20/10/2016

Acceptance date: 18/10/2016

ISSN (print): 0925-9635

ISSN (electronic): 1879-0062

Publisher: Elsevier Science


DOI: 10.1016/j.diamond.2016.10.013


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Funder referenceFunder name
De Beers Technologies UK
N8 consortium