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Updated: Nov 17, 2025

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Nitrogen-Vacancy Color Centers Created by Proton Implantation in a Diamond
Mariusz Mrózek1, Mateusz Schabikowski2, Marzena Mitura-Nowak2
1Institute of Physics, Jagiellonian University, ojasiewicza 11, 30-348 Kraków, Poland.
Abstract:
We present an experimental study of the longitudinal and transverse relaxation of ensembles of negatively charged nitrogen-vacancy (NV-) centers in a diamond monocrystal prepared by 1.8 MeV proton implantation. The focused proton beam was used to introduce vacancies at a 20 µµm depth layer. Applied doses were in the range of 1.5×1013 to 1.5×1017 ions/cm2. The samples were subsequently annealed in vacuum which resulted in a migration of vacancies and their association with the nitrogen present in the diamond matrix. The proton implantation technique proved versatile to control production of nitrogen-vacancy color centers in thin films.
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