Optical Spin Initialization of Nitrogen Vacancy Centers in a 28Si-Enriched 6H-SiC Crystal for Quantum Technologies
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866917726747885568 |
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| author | Murzakhanov, F. F. Sadovnikova, M. A. Mamin, G. V. Shurtakova, D. V. Mokhov, E. N. Kazarova, O. P. Gafurov, M. R. |
| author_facet | Murzakhanov, F. F. Sadovnikova, M. A. Mamin, G. V. Shurtakova, D. V. Mokhov, E. N. Kazarova, O. P. Gafurov, M. R. |
| contents | High-spin defect centers in crystal matrices are used in quantum computing technologies, highly sensitive sensors, and single-photon sources. In this work, optically active nitrogen-vacancy color centers NV in a 28Si-enriched (nuclear spin I = 0) 6H-28SiC crystal have been studied using the photoinduced (980 nm) high-frequency (94 GHz, 3.4 T) pulsed electron paramagnetic resonance method at a temperature of 150 K. Three structurally nonequivalent types of NV- centers with axial symmetry have been identified and their spectroscopic parameters have been determined. Long spin-lattice, T1=1.3 ms, and spin-spin, T2=59 us, ensemble relaxation times of NV- centers with extremely narrow (450 kHz) absorption lines allow highly selective excitation of resonant transitions between sublevels caused by the weak hyperfine interaction (A = 1 MHz) with 14N (I = 1) nuclei for the quantum manipulation of the electron spin magnetization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_13351 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Optical Spin Initialization of Nitrogen Vacancy Centers in a 28Si-Enriched 6H-SiC Crystal for Quantum Technologies Murzakhanov, F. F. Sadovnikova, M. A. Mamin, G. V. Shurtakova, D. V. Mokhov, E. N. Kazarova, O. P. Gafurov, M. R. Materials Science High-spin defect centers in crystal matrices are used in quantum computing technologies, highly sensitive sensors, and single-photon sources. In this work, optically active nitrogen-vacancy color centers NV in a 28Si-enriched (nuclear spin I = 0) 6H-28SiC crystal have been studied using the photoinduced (980 nm) high-frequency (94 GHz, 3.4 T) pulsed electron paramagnetic resonance method at a temperature of 150 K. Three structurally nonequivalent types of NV- centers with axial symmetry have been identified and their spectroscopic parameters have been determined. Long spin-lattice, T1=1.3 ms, and spin-spin, T2=59 us, ensemble relaxation times of NV- centers with extremely narrow (450 kHz) absorption lines allow highly selective excitation of resonant transitions between sublevels caused by the weak hyperfine interaction (A = 1 MHz) with 14N (I = 1) nuclei for the quantum manipulation of the electron spin magnetization. |
| title | Optical Spin Initialization of Nitrogen Vacancy Centers in a 28Si-Enriched 6H-SiC Crystal for Quantum Technologies |
| topic | Materials Science |
| url | https://arxiv.org/abs/2407.13351 |