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

Date

2022-02-01

Authors

Stern, Hannah L.
Gu, Qiushi
Jarman, John
Eizagirre Barker, Simone
Mendelson, Noah
Chugh, Dipankar
Schott, Sam
Tan, Hark Hoe
Sirringhaus, Henning
Aharonovich, Igor

Journal Title

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Volume Title

Publisher

Nature Publishing

Abstract

Optically addressable solid-state spins are important platforms for quantum technologies, such as repeaters and sensors. Spins in two-dimensional materials offer an advantage, as the reduced dimensionality enables feasible on-chip integration into devices. Here, we report room-temperature optically detected magnetic resonance (ODMR) from single carbon-related defects in hexagonal boron nitride with up to 100 times stronger contrast than the ensemble average. We identify two distinct bunching timescales in the second-order intensity-correlation measurements for ODMR-active defects, but only one for those without an ODMR response. We also observe either positive or negative ODMR signal for each defect. Based on kinematic models, we relate this bipolarity to highly tuneable internal optical rates. Finally, we resolve an ODMR fine structure in the form of an angle-dependent doublet resonance, indicative of weak but finite zero-field splitting. Our results offer a promising route towards realising a room-temperature spin-photon quantum interface in hexagonal boron nitride.

Description

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Citation

Source

Nature Communications

Type

Journal article

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Access Statement

Open Access

License Rights

Creative Commons Attribution License

DOI

10.1038/s41467-022-28169-z

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