Journal article
Creation of nitrogen-vacancy centers in chemical vapor deposition diamond for sensing applications
T Luo, L Lindner, J Langer, V Cimalla, X Vidal, F Hahl, C Schreyvogel, S Onoda, S Ishii, T Ohshima, D Wang, DA Simpson, BC Johnson, M Capelli, R Blinder, J Jeske
New Journal of Physics | Published : 2022
Abstract
The nitrogen-vacancy (NV) center in diamond is a promising quantum system for magnetometry applications exhibiting optical readout of minute energy shifts in its spin sub-levels. Key material requirements for NV ensembles are a high NV- concentration, a long spin coherence time and a stable charge state. However, these are interdependent and can be difficult to optimize during diamond growth and subsequent NV creation. In this work, we systematically investigate the NV center formation and properties in bulk chemical vapor deposition (CVD) diamond. The nitrogen flow during growth is varied by over four orders of magnitude, resulting in a broad range of single substitutional nitrogen concentr..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
We thank Arne Gotze, Oliver Ambacher, Brant Gibson, Philipp Reineck and Andrew Greentree for valuable discussions. We thank Michael Ardner for cutting and polishing the diamond plates, Christine Lell and Michaela Fritz for conducting extended cleaning process for the samples, Dorothee Luick for the technical support of UV-Vis measurements, Shangjing Liu for the technical support of PL measurements, and Sioe See Volaric for technical EPR assistance. The part of electron irradiation was carried out within the framework of QST Internal Research Initiative. TL and JJ acknowledge the funding by the German federal ministry for education and research Bundesministerium fur Bildung und Forschung (BMBF) under Grant No. 13XP5063. BCJ acknowledges support from the ARC Centre of Excellence for Quantum Computation and Communication Technology (CE170100012). DW acknowledges the support through an Australian Government Research Training Program Scholarship. MC acknowledges funding from the Asian Office of Aerospace Research and Development (FA2386-18-1-4056).