Negatively charged nitrogen-vacancy centers in a silicon carbide crystal of 6H-28SiC
Murzakhanov F. F.1, Mamin G. V.1, Sadovnikova M. A.1, Shurtakova D. V.1, Kazarova O. P.2, Gafurov M. R.1
1Institute of Physics, Kazan Federal University, Kazan, Russia
2Ioffe Institute, St. Petersburg, Russia
Email: murzakhanov.fadis@yandex.ru
In this work, high-spin (S=1) color centers in isotopically modified 6H-28SiC crystal were identified using high-frequency electron paramagnetic resonance techniques. The components of the spin Hamiltonian (g, D, A) of negatively charged nitrogen-vacancy (NV-) centers are determined and the influence of optical excitation modes on their relaxation characteristics is studied. The obtained results prove the potential possibility of using NV- defects in 6H-28SiC for the material implementation of qubits and spin-photonic interfaces. Keywords: Spin defects, silicon carbide, optical polarization.
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