Creation of Depth-Confined, Shallow Nitrogen-Vacancy Centers in Diamond With Tunable Density

• URL: http://arxiv.org/abs/2512.11242v1
• Date: Fri, 12 Dec 2025 02:57:36 GMT
• Title: Creation of Depth-Confined, Shallow Nitrogen-Vacancy Centers in Diamond With Tunable Density
• Authors: Lillian B. Hughes Wyatt, Shreyas Parthasarathy, Isaac Kantor, Casey K. Kim, Lingjie Chen, Taylor A. Morrison, Jeffrey Ahlers, Kunal Mukherjee, Ania C. Bleszynski Jayich,
• Abstract summary: We find that the creation of near-surface NVs through delta doping during diamond growth allows for tunable control over both NV depth confinement and NV density.<n>We demonstrate the utility of our shallow delta-doped NVs by imaging magnetism in few-layer CrSBr, a two-dimensional magnet.
• Score: 0.37023522264411585
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Engineering shallow nitrogen-vacancy (NV) centers in diamond holds the key to unlocking new advances in nanoscale quantum sensing. We find that the creation of near-surface NVs through delta doping during diamond growth allows for tunable control over both NV depth confinement (with a twofold improvement relative to low-energy ion implantation) and NV density, ultimately resulting in highly-sensitive single defects and ensembles with coherence limited by NV-NV interactions. Additionally, we demonstrate the utility of our shallow delta-doped NVs by imaging magnetism in few-layer CrSBr, a two-dimensional magnet. We anticipate that the control afforded by near-surface delta doping will enable new developments in NV quantum sensing from nanoscale NMR to entanglement-enhanced metrology.

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