Related papers: A strongly interacting, two-dimensional, dipolar spin ensemble in (111)-oriented diamond

A strongly interacting, two-dimensional, dipolar spin ensemble in (111)-oriented diamond

URL: http://arxiv.org/abs/2404.10075v1
Date: Mon, 15 Apr 2024 18:26:12 GMT
Title: A strongly interacting, two-dimensional, dipolar spin ensemble in (111)-oriented diamond
Authors: 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,
Abstract summary: Systems of spins with strong dipolar interactions and controlled dimensionality enable new explorations in quantum sensing and simulation. We create strong dipolar interactions in a two-dimensional ensemble of nitrogen-vacancy (NV) centers generated via plasma-enhanced chemical vapor deposition (PECVD) on (111)-oriented diamond substrates.
Score: 2.6750003591457205
License: http://creativecommons.org/licenses/by/4.0/
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 (PECVD) 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 $\eta_{AC}$ = 810 pT um$^{3/2}$ Hz$^{-1/2}$. Furthermore, we show that (111) affords maximally positive dipolar interactions amongst a 2D NV ensemble, which is crucial for leveraging dipolar-driven entanglement schemes and exploring new interacting spin physics.

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