Bright oxygen- and vacancy-derived spin-singlet diamond color centers with metastable spin triplets: OV${}^{2+}$ and VOV${}^{2+}$

John Mark P. Martirez

The ST1 diamond color center was experimentally demonstrated to involve a substitutional oxygen atom (O${}_C$) and carbon vacancy (V${}_C$), has a spin singlet ground-state, and a meta…