Auteur(s): Kumar P., Fabre F., Durand A., Clua-Provost T., Li J., Edgar J. H., Rougemaille N., Coraux J., Marie X., Renucci P., Robert C., Robert-Philip I., Gil B., Cassabois G., Finco A., Jacques V.
(Article) Publié:
Physical Review Applied, vol. 18 p.L061002 (2022)
Texte intégral en Openaccess : 
Ref HAL: hal-03951311_v1
Ref Arxiv: 2207.10477
DOI: 10.1103/PhysRevApplied.18.L061002
WoS: WOS:000905309300005
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé:
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 (VB-) centers throughneutron 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 areits 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.