Abstract
Spin-active color centers in solids show good performance for quantum technologies. Several transition-metal defects in SiC offer compatibility with telecom and semiconductor industries. However, whether their strong spin-orbit coupling degrades their spin lifetimes is not clear. We show that a combination of a crystal-field with axial symmetry and spin-orbit coupling leads to a suppression of spin-lattice and spin-spin interactions, resulting in remarkably slow spin relaxation. Our optical measurements on an ensemble of Mo impurities in SiC show a spin lifetime $T_1$ of $2,4$ s at $2$ K.
Original language | English |
---|---|
Article number | 103051 |
Journal | New Journal of Physics |
Volume | 22 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct-2020 |
Keywords
- quant-ph
- cond-mat.mes-hall
- physics.optics
- MAGNETIC-RESONANCE
- VANADIUM