Nitrogen-vacancy centers with high intrinsic effective fields as probes for electric noise

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-04-22 DOI:10.1063/5.0234094

Changfeng Weng, Jiaxin Zhao, Mengyuan Cai, Yuanjie Yang, Shengran Lin, Wei Zhu, Liren Lou, Guanzhong Wang

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引用次数: 0

Abstract

Characterizing electric field noise in diamond is crucial for utilizing nitrogen-vacancy (NV) centers as probes and qubits. However, NV centers under axial magnetic fields are sensitive to magnetic fields and thus are limited in their ability to characterize electric fields directly. In this study, we engineered NV centers exhibiting strong intrinsic effective electric fields through ion implantation into CVD-grown diamond. We selected seven NV centers with splittings in the range of 18–66 MHz as the focus of our research. By virtue of the suppression effect of the strong effective field on the magnetic field, the energy level shift caused by the magnetic field was reduced by two orders of magnitude. Combining spectral decomposition techniques, we extracted the electric noise spectrum in the low-frequency range from the environmental noise. Our results indicate that the near-surface electrical noise of the diamond deviates from the 1/f noise model, and two characteristic correlation times were observed within the measured frequency range (1–10 MHz).

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具有高本征有效场的氮空位中心作为电噪声探测器

金刚石中电场噪声的表征对于利用氮空位中心作为探针和量子比特至关重要。然而，轴向磁场下的NV中心对磁场敏感，因此直接表征电场的能力受到限制。在这项研究中，我们通过离子注入到cvd生长的金刚石中，设计出具有强本征有效电场的NV中心。我们选择了7个在18-66 MHz范围内分裂的NV中心作为我们研究的重点。利用强有效场对磁场的抑制作用，使磁场引起的能级位移减小了两个数量级。结合频谱分解技术，从环境噪声中提取低频范围内的电噪声频谱。结果表明，金刚石的近表面电噪声偏离了1/f噪声模型，并且在测量频率范围（1 - 10 MHz）内观察到两个特征相关次数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.