Strongly Interacting, Two-Dimensional, Dipolar Spin Ensembles in (111)-Oriented Diamond

IF 11.6 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Physical Review X Pub Date : 2025-05-01 DOI:10.1103/physrevx.15.021035

Lillian B. Hughes, Simon A. Meynell, Weijie Wu, Shreyas Parthasarathy, Lingjie Chen, Zhiran Zhang, Zilin Wang, Emily J. Davis, Kunal Mukherjee, Norman Y. Yao, Ania C. Bleszynski Jayich

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Abstract

Systems of spins with strong dipolar interactions and controlled dimensionality enable new explorations in quantum sensing and simulation. In this work, we investigate the creation of strong dipolar interactions in a two-dimensional ensemble of nitrogen-vacancy (NV) centers generated via plasma-enhanced chemical vapor deposition on (111)-oriented diamond substrates. We find that diamond growth on the (111) plane yields high incorporation of spins, both nitrogen and NV centers, where the density of the latter is tunable via the miscut of the diamond substrate. Our process allows us to form dense, preferentially aligned, 2D NV ensembles with volume-normalized ac sensitivity down to ηac=810pTμm3/2Hz−1/2. Furthermore, we show that (111) affords maximally positive dipolar interactions among a 2D NV ensemble, which is crucial for leveraging dipolar-driven entanglement schemes and exploring new interacting spin physics.

Published by the American Physical Society

2025

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（111）取向金刚石中强相互作用的二维偶极自旋综

具有强偶极相互作用和控制维度的自旋系统使量子传感和模拟的新探索成为可能。在这项工作中，我们研究了通过等离子体增强化学气相沉积在（111）取向金刚石衬底上产生的氮空位（NV）中心二维系综中强偶极相互作用的产生。我们发现金刚石在（111）平面上生长产生了高的自旋结合，氮中心和NV中心，后者的密度可以通过金刚石衬底的误切来调节。我们的工艺使我们能够形成密集的、优先排列的二维NV集成，其体积归一化交流灵敏度低至ηac=810pTμm3/2Hz−1/2。此外，我们表明（111）在二维NV系综中提供了最大的正偶极相互作用，这对于利用偶极驱动的纠缠方案和探索新的相互作用自旋物理至关重要。2025年由美国物理学会出版

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来源期刊

Physical Review X PHYSICS, MULTIDISCIPLINARY-

CiteScore

24.60

自引率

1.60%

发文量

197

审稿时长

3 months

期刊介绍： Physical Review X (PRX) stands as an exclusively online, fully open-access journal, emphasizing innovation, quality, and enduring impact in the scientific content it disseminates. Devoted to showcasing a curated selection of papers from pure, applied, and interdisciplinary physics, PRX aims to feature work with the potential to shape current and future research while leaving a lasting and profound impact in their respective fields. Encompassing the entire spectrum of physics subject areas, PRX places a special focus on groundbreaking interdisciplinary research with broad-reaching influence.