Determination of local defect density in diamond by double electron-electron resonance

Abstract

Magnetic impurities in diamond influence the relaxation properties and thus limit the sensitivity of magnetic, electric, strain, and temperature sensors based on nitrogen-vacancy color centers. Diamond samples may exhibit significant spatial variations in the impurity concentrations hindering the quantitative analysis of relaxation pathways. Here, we present a local measurement technique which can be used to determine the concentration of various species of defects by utilizing double electron-electron resonance. This method will help to improve the understanding of the physics underlying spin relaxation and guide the development of diamond samples, as well as offering protocols for optimized sensing.

References in corpus (7)

• High-fidelity projective readout of a solid-state spin quantum register
• Scanning magnetic field microscope with a diamond single-spin sensor
• Nanoscale NMR Spectroscopy and Imaging of Multiple Nuclear Species
• Spin dynamics in the optical cycle of single nitrogen-vacancy centres in diamond
• Quenching Spin Decoherence in Diamond through Spin Bath Polarization
• Phonon-Induced Population Dynamics and Intersystem Crossing in Nitrogen-Vacancy Centers
• Depolarization dynamics in a strongly interacting solid-state spin ensemble

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