Journal article
Impact of Surface Functionalization on the Quantum Coherence of Nitrogen-Vacancy Centers in Nanodiamonds
Robert G Ryan, Alastair Stacey, Kane M O'Donnell, Takeshi Ohshima, Brett C Johnson, Lloyd CL Hollenberg, Paul Mulvaney, David A Simpson
ACS APPLIED MATERIALS & INTERFACES | AMER CHEMICAL SOC | Published : 2018
Abstract
Nanoscale quantum probes such as the nitrogen-vacancy (NV) center in diamonds have demonstrated remarkable sensing capabilities over the past decade as control over fabrication and manipulation of these systems has evolved. The biocompatibility and rich surface chemistry of diamonds has added to the utility of these probes but, as the size of these nanoscale systems is reduced, the surface chemistry of diamond begins to impact the quantum properties of the NV center. In this work, we systematically study the effect of the diamond surface chemistry on the quantum coherence of the NV center in nanodiamonds (NDs) 50 nm in size. Our results show that a borane-reduced diamond surface can on avera..
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Grants
Awarded by Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology
Awarded by Australian Research Council under the Laureate Fellowship scheme
Awarded by Australia Research Council Center of Excellence in Exciton Science
Funding Acknowledgements
The authors acknowledge fruitful discussions with Dr Jean-Philippe Tetienne and Dr Liam Hall. Spectroscopic analysis for this research was undertaken on the Soft X-ray Spectroscopy beamline at the Australian Synchrotron, Victoria, Australia. This research was supported in part by the Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology (project number CE110001027). This work was also supported by the University of Melbourne through the Centre for Neural Engineering and the Centre for Neuroscience. L.C.L.H. acknowledges support of the Australian Research Council under the Laureate Fellowship scheme (FL130100119). P. M. and R. R. acknowledge support through the Australia Research Council Center of Excellence in Exciton Science (CE170100026).