TY  - JOUR
AU  - Grotz, Bernhard
AU  - Hauf, Moritz V.
AU  - Dankerl, Markus
AU  - Naydenov, Boris
AU  - Pezzagna, Sébastien
AU  - Meijer, Jan
AU  - Jelezko, Fedor
AU  - Wrachtrup, Jörg
AU  - Stutzmann, Martin
AU  - Reinhard, Friedemann
AU  - Garrido, Jose A.
PY  - 2012
DA  - 2012//
TI  - Charge state manipulation of qubits in diamond
T2  - Nat. Comm.
JO  - Nature Communications
SP  - 6
VL  - 3
IS  - 729
KW  - fromIPMRAS
AB  - The nitrogen-vacancy (NV) centre in diamond is a promising candidate for a solid-state qubit. However, its charge state is known to be unstable, discharging from the qubit state NV- into the neutral state NV0 under various circumstances. Here we demonstrate that the charge state can be controlled by an electrolytic gate electrode. This way, single centres can be switched from an unknown non-fluorescent state into the neutral charge state NV0, and the population of an ensemble of centres can be shifted from NV0 to NV-. Numerical simulations confirm the manipulation of the charge state to be induced by the gate-controlled shift of the Fermi level at the diamond surface. This result opens the way to a dynamic control of transitions between charge states and to explore hitherto inaccessible states, such as NV+.
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=770), last updated on Sun, 06 May 2012 16:46:16 -0500
ID  - Grotz_etal2012
ER  -