We are using a homebuilt confocal microscope combined with a magnetic force microscope (MFM) probe to both address the NV spin and employ a scanning magnetic field gradient for sub-diffraction limited determination of the depth of NVs. Our goal is to understand how the spin coherence properties depend on surface effects such as strain and coupling to paramagnetic impurities and thus how to optimize these shallow “doped NV” magnetic field sensors.
of Near-Surface Nitrogen-Vacancy Centers – Phys. Rev. Lett. 118, 197201 (2017)
Hyperfine-enhanced gyromagnetic ratio of a nuclear spin in diamond – New Journal of Physics 18, 083016 (2016)
Double-quantum spin-relaxation limits to coherence of near-surface nitrogen-vacancy centers – arXiv:1607.02553 (2016)
Patterned Formation of Highly Coherent Nitrogen-Vacancy Centers Using a Focused Electron Irradiation Technique – Nano Lett. ASAP (2016)
Probing surface noise with depth-calibrated spins in diamond – Phys. Rev. Lett., 113, 027602 (2014)
Three-dimensional localization of spins in diamond using 12C implantation – Appl. Phys. Lett. 105, 052406 (2014)
Engineering shallow spins in diamond with nitrogen delta-doping – Appl. Phys. Lett. 101, 082413 (2012)