期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 21, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.226402
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资金
- Ministry of Education and Science, Russia [14.740.11.0048, 16.513.12.3007]
- Russian Academy of Sciences
- Russian Foundation for Basic Research
We report the realization of the optically induced inverse population of the ground-state spin sublevels of the silicon vacancies (V-Si) in silicon carbide (SiC) at room temperature. The data show that the probed silicon vacancy spin ensemble can be prepared in a coherent superposition of the spin states. Rabi nutations persist for more than 80 mu s. Two opposite schemes of the optical alignment of the populations between the ground-state spin sublevels of the silicon vacancy upon illumination with unpolarized light are realized in 4H- and 6H-SiC at room temperature. These altogether make the silicon vacancy in SiC a very favorable defect for spintronics, quantum information processing, and magnetometry.
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