Interaction of Nitrogen-Vacancy Centers in Diamond with a Dense Ensemble of Carbon-13

TL;DR

This study investigates how nitrogen-vacancy centers in diamond interact with dense carbon-13 isotopes, developing a strain-independent magnetic resonance technique and analyzing spectral features for sensing applications.

Contribution

The paper introduces a novel strain-independent method for measuring carbon-13 concentration using magnetic resonance spectra analysis.

Findings

Developed a magnetic resonance spectrum analysis technique for carbon-13 concentration

Detected and explained narrow spectral features in the magnetic resonance data

Analyzed NV center interactions with dense carbon-13 in diamond

Abstract

The nitrogen-vacancy center in diamond attracts a lot of attention in sensing applications, mainly for temperature, magnetic field, and rotation measurements. Nuclear spins of carbon-13 surrounding the nitrogen-vacancy center can be used as a memory or sensing element. In the current work, a diamond plate with a relatively large concentration of carbon-13 was synthesized and examined. The spectrum of optically detected magnetic resonance was recorded and analyzed in a magnetic field range of 5-200 G. A strain-independent measurement technique of carbon-13 isotope concentration based on the analysis of magnetic resonance spectra was developed. Additionally, narrow features in the spectrum were detected and understood.