Physics – Quantum Physics
Scientific paper
2009-12-29
Physics
Quantum Physics
This paper has been withdrawn by the request of one of authors
Scientific paper
A high-nitrogen-concentration diamond sample was subject to electron irradiation using a transmission-electron microscope. The optical and spin-resonance properties of the nitrogen-vacancy (NV) color centers were investigated as a function of the irradiation dose. The electron spin transition frequency of the NV- center is found to shift by up to 0.7% (18 MHz) and broaden with increasing electron-irradiation dose up to 6.39x10^21e-/cm2. An increase in the fraction of the neutral NV0 centers is also observed with increasing irradiation dose, reaching more than 50% NV0 before the background fluorescence obscures the NV signal.
Acosta Victor M.
Bauch Erik
Budker Dmitry
Hemmer Philip R.
Kim Changdong
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