Low-field feature in the magnetic spectra of NV−centers in diamond
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2015-02-13 |
| Journal | New Journal of Physics |
| Authors | S. V. Anishchik, Victor G. Vins, Alexander Yèlisseyev, Nikita N. Lukzen, Н. Л. Лаврик |
| Institutions | Siberian Branch of the Russian Academy of Sciences, V.S. Sobolev Institute of Geology and Mineralogy |
| Citations | 30 |
Abstract
Section titled “Abstract”The low-magnetic-field feature in the magnetic field dependence of the luminescence of negatively charged nitrogen-vacancy (NV ^− ) centers in diamond has been experimentally observed for the first time. This feature, centered at the zero magnetic field—henceforth the zero field line—and observed with a magnetic field sweep of NV ^− center luminescence (magnetic spectrum), is quite narrow. The properties of this line are considerably different from those of other narrow NV ^− magnetic spectrum lines. Its amplitude is weakly dependent on the orientation of the single-crystal sample with respect to the external magnetic field. This line is also observed in a powdered sample. The shape of the line changes drastically with a change in the polarization of excitation light. The amplitude of the line non-linearly depends on excitation light intensity. For low intensities this dependence is close to the square law. We attribute the occurrence of this line to the dipole-dipole interaction between different NV ^− centers.