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Room-temperature optically detected magnetic resonance of single defects in hexagonal boron nitride

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Stern, Hannah L 
Gu, Qiushi 
Barker, Simone Eizagirre 
Mendelson, Noah 

Abstract

Optically addressable spins in materials are important platforms for quantum technologies, such as repeaters and sensors. Identification of such systems in two-dimensional (2d) layered materials offers advantages over their bulk counterparts, as their reduced dimensionality enables more feasible on-chip integration into devices. Here, we report optically detected magnetic resonance (ODMR) from previously identified carbon-related defects in 2d hexagonal boron nitride (hBN). We show that single-defect ODMR contrast can be as strong as 6% and displays a magnetic-field dependence with both positive or negative sign per defect. This bipolarity can shed light into low contrast reported recently for ensemble ODMR measurements for these defects. Further, the ODMR lineshape comprises a doublet resonance, suggesting either low zero-field splitting or hyperfine coupling. Our results offer a promising route towards realising a room-temperature spin-photon quantum interface in hexagonal boron nitride.

Description

Keywords

cond-mat.mes-hall, cond-mat.mes-hall, cond-mat.mtrl-sci, quant-ph

Journal Title

Nature Communications

Conference Name

Journal ISSN

2041-1723
2041-1723

Volume Title

Publisher

Nature Research
Sponsorship
European Research Council (610115)
Engineering and Physical Sciences Research Council (EP/S022953/1)
European Commission Horizon 2020 (H2020) ERC (884745)
European Commission Horizon 2020 (H2020) ERC (862405)