1. Spin properties of NV centers in high-pressure, high-temperature grown diamond
- Author
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О R Rubinas, Alexey V. Akimov, Andrey N. Smolyaninov, S. V. Bolshedvorskii, V.G. Vins, Vadim V. Vorobyov, A. P. Yelisseyev, Vadim N Sorokin, and Vladimir V. Soshenko
- Subjects
Materials science ,Spins ,Dephasing ,FOS: Physical sciences ,General Physics and Astronomy ,Diamond ,chemistry.chemical_element ,Physics - Applied Physics ,Applied Physics (physics.app-ph) ,02 engineering and technology ,Chemical vapor deposition ,engineering.material ,021001 nanoscience & nanotechnology ,01 natural sciences ,Molecular physics ,Nitrogen ,Temperature gradient ,chemistry ,Electric field ,0103 physical sciences ,engineering ,010306 general physics ,0210 nano-technology ,Coherence (physics) - Abstract
The sensitivity of magnetic and electric field sensors based on nitrogen-vacancy (NV) center in diamond strongly depends on the available concentration of NV and their coherence properties. Achieving high coherence times simultaneously with high concentration is a challenging experimental task. Here, we demonstrate that by using a temperature gradient method of high-pressure, high-temperature growing technique, one can achieve nearly maximally possible dephasing times, limited only by carbon nuclear spins at low nitrogen concentrations or nitrogen electron spin at high nitrogen concentrations. Hahn-echo T 2 coherence times were also investigated and found to demonstrate reasonable values. Thus, the high-pressure, high-temperature technique is a strong contender to the popular chemical vapor deposition method in the development of high-sensitivity, diamond-based sensors.
- Published
- 2018
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