Spintronic and electronic properties of a neutral oxygen-vacancy (O-V) center, an isoelectronic defect similar to the negatively charged nitrogen-vacancy center in diamond, were studied by combining first-principles calculations and a mean-field theory for spin hyperfine interaction. It is elucidated that the neutral O-V center is stable in the p-type diamond and possesses an S = 1 triplet ground state and four spin-conserved excited states with the spin coherence times in an order of second at T = 0 K. The results indicate that the neutral O-V center is another promising candidate for spin coherent manipulation and qubit operation.
A neutral oxygen-vacancy center in diamond: A plausible qubit candidate and its spintronic and electronic properties
Y. G. Zhang, Z. Tang, X. G. Zhao, G. D. Cheng, Y. Tu, W. T. Cong, W. Peng, Z. Q. Zhu, J. H. Chu; A neutral oxygen-vacancy center in diamond: A plausible qubit candidate and its spintronic and electronic properties. Appl. Phys. Lett. 4 August 2014; 105 (5): 052107. https://doi.org/10.1063/1.4892654
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