Engineering shallow spins in diamond with nitrogen delta-doping
arXiv:1207.2784 · doi:10.1063/1.4748280
Abstract
We demonstrate nanometer-precision depth control of nitrogen-vacancy (NV) center creation near the surface of synthetic diamond using an in situ nitrogen delta-doping technique during plasma-enhanced chemical vapor deposition. Despite their proximity to the surface, doped NV centers with depths (d) ranging from 5 - 100 nm display long spin coherence times, T2 > 100 \mus at d = 5 nm and T2 > 600 \mus at d \geq 50 nm. The consistently long spin coherence observed in such shallow NV centers enables applications such as atomic-scale external spin sensing and hybrid quantum architectures.
14 pages, 4 figures, 11 pages of additional supplementary material
References in corpus (11)
- High-sensitivity diamond magnetometer with nanoscale resolution
- Universal dynamical decoupling of a single solid-state spin from a spin bath
- High-fidelity projective readout of a solid-state spin quantum register
- Scanning magnetic field microscope with a diamond single-spin sensor
- Scalable quantum register based on coupled electron spins in a room temperature solid
- Extending Quantum Coherence in Diamond
- Chip-scale nanofabrication of single spins and spin arrays in diamond
- Dynamical Decoupling of a single electron spin at room temperature
- Coherence of single spins coupled to a nuclear spin bath of varying density
- Electron spin decoherence of single Nitrogen-Vacancy defects in diamond
- Nuclear spin pair coherence in diamond for atomic scale magnetometry