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Boron-nitrogen co-terminated diamond (110) surface for nitrogen-vacancy quantum sensors from first-principles
1College of Mechanical and Civil Engineering, Jilin Agricultural Science and Technology University, Jilin 132101, People's Republic of China.
Abstract:
The nitrogen-vacancy (NV) center in diamond surface is a critical issue in quantum sensors with no sensitivity to surface terminators. We investigate the structural stabilities and electronic properties of boron (B)-N co-terminated diamond (110) surface based on first-principles calculations. The B-N co-terminated diamond (110) surfaces combined with monolayer coverage of hydrogen (H) and fluorine (F) adsorption are dynamically and thermally stable. Remarkably, the H/F mixed (H/F = 1.0) adsorption surface has neither surface spin noise nor surface-related state, and a positive electron affinity of 1.11 eV, thus it could be a prospective candidate for NV-based quantum sensors.
