@article{bb9310b33501450dbe21ea585a3d68ce,
title = "Neutral Silicon Vacancy Centers in Undoped Diamond via Surface Control",
abstract = "Neutral silicon vacancy centers (SiV0) in diamond are promising candidates for quantum applications; however, stabilizing SiV0 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 SiV0 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 SiV0 centers, as well as charge state engineering of other defects.",
author = "Zhang, {Zi Huai} and Zuber, {Josh A.} and Rodgers, {Lila V.H.} and Xin Gui and Paul Stevenson and Minghao Li and Marietta Batzer and {Grimau Puigibert}, {Marcel Li} and Shields, {Brendan J.} and Edmonds, {Andrew M.} and Nicola Palmer and Markham, {Matthew L.} and Cava, {Robert Joseph} and Patrick Maletinsky and {De Leon}, {Nathalie P.}",
note = "Funding Information: We gratefully acknowledge Z. Yuan for use of the visible wavelength confocal microscope and S. Mukherjee for help with surface characterization. Spectroscopy of SiV was supported by National Science Foundation through the Princeton Center for Complex Materials, a Materials Research Science and Engineering Center (Grant No. DMR-1420541) and the Air Force Office of Scientific Research under Grant No. FA9550-17-0158. Surface processing to control the charge state was supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Co-design Center for Quantum Advantage (C2QA) under Contract No. DE-SC0012704, the Swiss Nanoscience Institute, and the quantERA grant SensExtreme. L. V. H. R. acknowledges support from the Department of Defense through the National Defense Science and Engineering Graduate Fellowship Program. Publisher Copyright: {\textcopyright} 2023 American Physical Society. ",
year = "2023",
month = apr,
day = "21",
doi = "10.1103/PhysRevLett.130.166902",
language = "English (US)",
volume = "13",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "16",
}