Abstract
The silicon vacancy in silicon carbide is a strong emergent candidate for applications in quantum information processing and sensing. We perform room temperature optically detected magnetic resonance and spin echo measurements on an ensemble of vacancies and find the spin echo properties depend strongly on magnetic field. The spin echo decay time varies from less than at low fields to at 68 mT, and a strong field-dependent spin echo modulation is also observed. The modulation is attributed to the interaction with nuclear spins and is well described by a theoretical model.
- Received 13 January 2015
- Revised 16 September 2015
DOI:https://doi.org/10.1103/PhysRevB.92.161202
©2015 American Physical Society