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Electrical control of deep NV centers in diamond by means of sub-superficial graphitic micro-electrodes (CROSBI ID 251901)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Forneris, J. ; Ditalia Tchernij, S. ; Tengattini, A. ; Enrico, E. ; Grilj, Veljko ; Skukan, Natko ; Amato, G. ; Boarino, L. ; Jakšić, Milko ; Olivero, P. Electrical control of deep NV centers in diamond by means of sub-superficial graphitic micro-electrodes // Carbon, 113 (2017), 76-86. doi: 10.1016/j.carbon.2016.11.031

Podaci o odgovornosti

Forneris, J. ; Ditalia Tchernij, S. ; Tengattini, A. ; Enrico, E. ; Grilj, Veljko ; Skukan, Natko ; Amato, G. ; Boarino, L. ; Jakšić, Milko ; Olivero, P.

engleski

Electrical control of deep NV centers in diamond by means of sub-superficial graphitic micro-electrodes

The control of the charge state of nitrogen-vacancy (NV) centers in diamond is of primary importance for the stabilization of their quantum-optical properties, in applications ranging from quantum sensing to quantum computing. In this work buried current-injecting graphitic micro-electrodes were fabricated in bulk diamond by means of a 6 MeV C3+ scanning micro-beam. The electrodes were exploited to control the variation in the relative population of the negative (NV-) and neutral (NV0) charge states of a sub superficial NV0 centers ensemble located in the inter-electrode gap region. Photoluminescence spectra exhibited an electrically-induced increase up to 40% in the NV- population at the expense of the NV0 charge state, with a linear dependence from the injected current at applied biases smaller than 350 V, and was interpreted as the result of electron trapping at NV0 sites. An abrupt current increase at similar to 350 V bias resulted in a strong electroluminescence from the NV0 centers, in addition to two spectrally sharp emission lines at 563.5 nm and 580 nm, not visible under optical excitation and attributed to self interstitial defects. These results disclose new possibilities in the electrical control of the charge state of NV centers located in the diamond bulk, which are characterized by longer spin coherence times. (C) 2016 Elsevier Ltd. All rights reserved

NITROGEN-VACANCY CENTERS ; EMISSION ; SPINS ; FUNCTIONALIZATION ; CONDUCTION ; DETECTOR ; QUBITS ; DRIVEN

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Podaci o izdanju

113

2017.

76-86

objavljeno

0008-6223

1873-3891

10.1016/j.carbon.2016.11.031

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Fizika

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