Year: 2025
Type: article
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 η ac = 810 pT μ m 3 / 2 Hz − 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.
Source: Physical Review X
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,200
Funders: National Science Foundation, U.S. Department of Defense, U.S. Department of Energy, Office of Science, University of California, Santa Barbara, Materials Research Science and Engineering Center, Harvard University, National Defense Science and Engineering Graduate, Multidisciplinary University Research Initiative, Center for Ultracold Atoms, Massachusetts Institute of Technology, Natural Sciences and Engineering Research Council of Canada, Division of Materials Research, Basic Energy Sciences, California NanoSystems Institute, Army Research Office
Awards: G1141670404, G1797871914, G2232042528, G2450830071, QLCI-CI: NSF Quantum Leap Challenge Institute for Present and Future Quantum Computing, Materials Research Science and Engineering Center at UCSB, G401861217, G4281768896, G4639932191, G501274426, Graduate Research Fellowship Program (GRFP), G5884252700, G5975534213, G6088048064, G6569974432, G6692005437, G7266390938, G7452299184, Enabling Quantum Leap: Q-AMASE-i: Quantum Foundry at UCSB, Imaging electrically tunable skyrmions with nitrogen vacancy centres in diamond, ATOM-DEFECT HYBRID QUANTUM SYSTEMS
OpenAlex ID: W4409994271