Neutral silicon vacancy centers in undoped diamond via surface control
Physical review letters, 2023•APS
Neutral silicon vacancy centers (SiV 0) in diamond are promising candidates for quantum
applications; however, stabilizing SiV 0 requires high-purity, boron-doped diamond, which is
not a readily available material. Here, we demonstrate an alternative approach via chemical
control of the diamond surface. We use low-damage chemical processing and annealing in
a hydrogen environment to realize reversible and highly stable charge state tuning in
undoped diamond. The resulting SiV 0 centers display optically detected magnetic …
applications; however, stabilizing SiV 0 requires high-purity, boron-doped diamond, which is
not a readily available material. Here, we demonstrate an alternative approach via chemical
control of the diamond surface. We use low-damage chemical processing and annealing in
a hydrogen environment to realize reversible and highly stable charge state tuning in
undoped diamond. The resulting SiV 0 centers display optically detected magnetic …
Neutral silicon vacancy centers () in diamond are promising candidates for quantum applications; however, stabilizing requires high-purity, boron-doped diamond, which is not a readily available material. Here, we demonstrate an alternative approach via chemical control of the diamond surface. We use low-damage chemical processing and annealing in a hydrogen environment to realize reversible and highly stable charge state tuning in undoped diamond. The resulting centers display optically detected magnetic resonance and bulklike optical properties. Controlling the charge state tuning via surface termination offers a route for scalable technologies based on centers, as well as charge state engineering of other defects.
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