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Creation of color centers in diamond by recoil implantation through dielectric films

MetadataDetails
Publication Date2024-01-22
JournalApplied Physics Letters
AuthorsYuyang Han, Christian Pederson, Bethany E. Matthews, Nicholas Yama, Maxwell F. Parsons
InstitutionsUniversity of Washington, Pacific Northwest National Laboratory
Citations3

The need of near-surface color centers in diamond for quantum technologies motivates the controlled doping of specific extrinsic impurities into the crystal lattice. Recent experiments have shown that this can be achieved by momentum transfer from a surface precursor via ion implantation, an approach known as ā€œrecoil implantation.ā€ Here, we extend this technique to incorporate dielectric precursors for creating nitrogen-vacancy (NV) and silicon-vacancy (SiV) centers in diamond. Specifically, we demonstrate that gallium focused-ion-beam exposure to a thin layer of silicon nitride or silicon dioxide on the diamond surface results in the introduction of both extrinsic impurities and carbon vacancies. These defects subsequently give rise to near-surface NV and SiV centers with desirable properties after annealing.

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