Journal
PHYSICAL REVIEW APPLIED
Volume 6, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.6.034001
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Funding
- ERA.Net RUS Plus Program (DIABASE)
- DFG via priority programme [1601]
- EU via ERC Grant SQUTEC
- Max Planck Society
- Knut and Alice Wallenberg Foundation
- KAKENHI [26286047]
- EU via ERC Grant Diadems
- Grants-in-Aid for Scientific Research [26286047] Funding Source: KAKEN
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Point defects in solids promise precise measurements of various quantities. Especially magnetic field sensing using the spin of point defects has been of great interest recently. When optical readout of spin states is used, point defects achieve optical magnetic imaging with high spatial resolution at ambient conditions. Here, we demonstrate that genuine optical vector magnetometry can be realized using the silicon vacancy in SiC, which has an uncommon S = 3/2 spin. To this end, we develop and experimentally test sensing protocols based on a reference field approach combined with multifrequency spin excitation. Our work suggests that the silicon vacancy in an industry-friendly platform, SiC, has the potential for various magnetometry applications under ambient conditions.
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