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Effect of Longitudinal Electron Spin Relaxation on Transverse Nuclear Spin Relaxation in a Nitrogen-Vacancy Center in Diamond

MetadataDetails
Publication Date2023-12-01
JournalBulletin of the Lebedev Physics Institute
AuthorsV. V. Soshenko, I. S. Cojocaru, Stepan V. Bolshedvorskii, Andrey N. Smolyaninov, Vadim N. Sorokin
InstitutionsP.N. Lebedev Physical Institute of the Russian Academy of Sciences

Nitrogen-vacancy (NV) color centers in diamond serve as a unique platform for various types of quantum sensors, including a nuclear magnetic resonance gyroscope. The fundamental sensitivity limit of a quantum sensor is closely related to the free precession dephasing time $$T_{{2n}}^{}$$ of the nuclear spin. The dependence of $$T_{{2n}}^{}$$ and transverse relaxation time $${{T}{{2n}}}$$ on the magnetic field at room temperature in the field range from 2 to 8 G is investigated, demonstrating that $$T{{2n}}^{*}$$ and $${{T}{{2n}}}$$ are not limited by the longitudinal relaxation time $${{T}{{1e}}}$$ of the electron spin projection.