Phys. Rev. B 80, 241204(R) (2009) [4 pages]Identification of individual 13C isotopes of nitrogen-vacancy center in diamond by combining the polarization studies of nuclear spins and first-principles calculations
We determine the charge- and spin-density distributions of nitrogen-vacancy center in diamond for both the ground and excited states by ab initio supercell calculations yielding very good agreement with the experiment. We correctly determine the polarization of 15N nuclear spin in the level anticrossing (LAC) mechanism. We show that LAC together with the accurate ab initio data can be used to identify the individual 13C nuclei around the defect that can also reveal the dominant component of the precession vector responsible for the decoherence of the addressed nuclear-spin qubit. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.80.241204
DOI:
10.1103/PhysRevB.80.241204
PACS:
71.55.Cn, 42.50.Ex, 42.50.Md, 61.72.Bb
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