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Diamond Materials

Diamond Materials for Quantum Application

23. September 2014: The DFG research group FOR 1493 “Diamond Materials and Quantum Applications” goes into its second funding period. FOR1493 is a national research consortium funded by the Deutsche Forsch-ungsgemeinschaft.

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ERC Advanced Grant

ERC

Addressing Single Nitrogen-Vacancy Centers in Diamond...

... with Transparent in-Plane Gate Structures

For many applications of the nitrogen-vacancy (NV) center in diamond, the understanding and active control of its charge state is highly desired. In this work, we demonstrate the reversible manipulation of the charge state of a single NV center from NV- across NV0 to a nonfluorescent, dark state by using an all-diamond in-plane gate nanostructure. Applying a voltage to the in-plane gate structure can influence the energy band bending sufficiently for charge state conversion of NV centers. These diamond in-plane structures can function as transparent top gates, enabling the distant control of the charge state of NV centers tens of micrometers away from the nanostructure.

Reference:
Nano Lett. 2014, 14, 2359?2364
Moritz V. Hauf, Patrick Simon, Nabeel Aslam, Matthias Pfender, Philipp Neumann,
Sebastien Pezzagna, Jan Meijer, Jörg Wrachtrup, Martin Stutzmann, Friedemann Reinhard,
and Jose A. Garrido,