Journal
PHYSICAL REVIEW APPLIED
Volume 18, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.18.L061002
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Funding
- French Agence Nationale de la Recherche under the program ESR/EquipEx+ [ANR-21-ESRE-0025]
- Institute for Quantum Technologies in Occitanie through the project BONIQs, an Office of Naval Research [N000142012474]
- U.S. Department of Energy, Office of Nuclear Energy under DOE Idaho Operations Office [DE-AC07-051D14517]
- Ohio State University Nuclear Reactor Laboratory
- U.S. Department of Defense (DOD) [N000142012474] Funding Source: U.S. Department of Defense (DOD)
- Agence Nationale de la Recherche (ANR) [ANR-21-ESRE-0025] Funding Source: Agence Nationale de la Recherche (ANR)
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In this study, quantitative magnetic imaging was demonstrated using hexagonal boron nitride (h-BN) flakes doped with negatively charged boron-vacancy (V-B) centers through neutron irradiation. Compared to other sensors embedded in 3D materials, the h-BN-based magnetic sensor described in this work shows advantages in terms of ease of use, high flexibility, and the ability to be placed in close proximity to a target sample.
Optically active spin defects hosted in hexagonal boron nitride (h-BN) are promising candidates for the development of a two-dimensional (2D) quantum sensing unit. Here, we demonstrate quantitative magnetic imaging with h-BN flakes doped with negatively charged boron-vacancy (V-B) centers through neutron irradiation. As a proof-of-concept, we image the magnetic field produced by CrTe2, a van der Waals ferromagnet with a Curie temperature slightly above 300 K. Compared to other quantum sensors embedded in 3D materials, the advantages of the h-BN-based magnetic sensor described in this work are its ease of use, high flexibility, and, more importantly, its ability to be placed in close proximity to a target sample. Such a sensing unit will likely find numerous applications in 2D materials research by offering a simple way to probe the physics of van der Waals heterostructures.
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