Efficient electrical spin readout of NV- centers in diamond

TL;DR

This paper demonstrates an efficient electrical method for reading out the spin state of NV- centers in diamond using pulsed photoionization, achieving high contrast and sensitivity comparable to optical techniques.

Contribution

It introduces a novel electrical detection approach for NV- center spins, supported by experimental data and Monte-Carlo simulations, optimizing contrast and sensitivity.

Findings

Achieved up to 17% contrast in electrical spin readout.

Identified conditions for optimal contrast and sensitivity.

Validated experimental results with Monte-Carlo simulations.

Abstract

Using pulsed photoionization the coherent spin manipulation and echo formation of ensembles of NV- centers in diamond are detected electrically realizing contrasts of up to 17 %. The underlying spin-dependent ionization dynamics are investigated experimentally and compared to Monte-Carlo simulations. This allows the identification of the conditions optimizing contrast and sensitivity which compare favorably with respect to optical detection.