RSL AND ODMR SPECTROSCOPY OF NV CENTERS IN вџЁ111вџ© DIAMOND NANOLAYERS AND PILLARS AFTER THE IMPACT OF A GA+ FOCUSED ION BEAM
I. A. Kartashov1,3,4, S. N. Podlesny1, V. A. Antonov1, V. P. Popov1, Yu. N. Pal’yanov2,3
1Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
3Novosibirsk State University, Novosibirsk, RussiaВ
4Novosibirsk State Technical University, Novosibirsk, Russia
Keywords: synthetic diamond, nanostructures with NV centers, optical detection of magnetic resonances, Raman scattering
Abstract
The spectral characteristics of optically detectable magnetic resonance (ODMR) are investigated for negatively charged nitrogen-vacancy (NV-) centers in synthetic diamonds and nanopillars on their surface formed by a Ga+ focused ion beam (FIB), when lower spin sublevels are populated with the microwave radiation in 0-20 G magnetic fields. Both a significant decrease in the gyromagnetic ratio and the quenching of luminescence from the NV- centers inclined to the nanopillar axis are revealed due to residual defects and stresses created by them.
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