R. A. Akhmedzhanov, L. A. Gushchin, I. V. Zelensky, A. V. Kupaev, V. A. Nizov, N. A. Nizov, D. A. Sobgaida, “Quantum magnetometer based on cross-relaxation resonances in ensembles of NV-centers in diamond”, Zhurnal Tekhnicheskoi Fiziki, 2022, Volume 92, Issue 11,Pages <nobr>1737

Experimental instruments and technique

Quantum magnetometer based on cross-relaxation resonances in ensembles of NV-centers in diamond

R. A. Akhmedzhanov, L. A. Gushchin, I. V. Zelensky, A. V. Kupaev, V. A. Nizov, N. A. Nizov, D. A. Sobgaida

Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia

Abstract: We create a working model of a magnetometer of a new type that is based on using cross-relaxation resonances in ensembles of NV-centers in diamond. This type of magnetometer does not require microwave radiation. For a sensor made out of a 300 micron diamond we demonstrate the magnetic field sensitivity of around 18 nT/Hz$^{1/2}$.

Keywords: cross-relaxation, NV-center, quantum magnetometer.

Received: 18.05.2022
Revised: 12.08.2022
Accepted: 14.08.2022

DOI: 10.21883/JTF.2022.11.53449.138-22