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Engineering shallow spins in diamond with nitrogen delta-doping
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10.1063/1.4748280
/content/aip/journal/apl/101/8/10.1063/1.4748280
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4748280
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

CWESR spectra of a substrate 14NV center (a) and a doped 15NV center (b). The curves show three- and two-Lorentizan fits to the respective data.

Image of FIG. 2.
FIG. 2.

(a) 13C atomic percentage, inferred from 13C and 12C SIMS measurements of the 13C/12C/13C isotopically layered structure. A schematic of the sample structure is superposed on the SIMS data, showing the 15N doped layer (thickness 2 nm) as a red line at the center of the 15 nm-thick 12C layer. (b), (c) ESEEM measurements of a substrate 14NV center (b) and doped 15NV center (c). The curve in (c) is a fit according to the ESEEM model with two 15N Larmor precession frequency components and depending on the electron spin state.

Image of FIG. 3.
FIG. 3.

(a) Schematic of 15N delta-doped 12C films with varying cap layer thickness, c. (b), (c) Hahn echo coherence decay of doped NV centers at d = 5 nm (b) and 52 nm (c). The curves are fits of the form . Uncertainties in T 2 are quoted at 95% confidence.

Image of FIG. 4.
FIG. 4.

(a) Summary of T 2 measurements for doped NV centers. (b) Predicted magnetic dipole sensitivity as a function of distance from the doped NV center, r, for the highest-coherence NV center in the d = 5 (red, dash-dot curve) and 21 nm (blue, solid curve) samples. We assume r || [100], such that d is the minimum separation. The required sensitivities for detecting single electron and proton spins with 1 s averaging are shown as dashed lines. Inset: schematic of a doped NV center probe (symmetry axis [111]) in the diamond sample and an external spin at displacement r. The dashed curve is an iso-sensitivity contour, assuming the external spin is oriented to optimize the sensitivity for each displacement angle, θ.

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/content/aip/journal/apl/101/8/10.1063/1.4748280
2012-08-24
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Engineering shallow spins in diamond with nitrogen delta-doping
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4748280
10.1063/1.4748280
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