A single spin in hexagonal boron nitride for vectorial quantum magnetometry
Abstract Quantum sensing based on solid-state spin defects provides a uniquely versatile platform for nanoscale magnetometry under diverse environmental conditions. Operation of most sensors used to-date is based on projective measurement along a single axis combined with computational extrapolation...
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Nature Portfolio
2025-05-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-59642-0 |
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| author | Carmem M. Gilardoni Simone Eizagirre Barker Catherine L. Curtin Stephanie A. Fraser Oliver. F. J. Powell Dillon K. Lewis Xiaoxi Deng Andrew J. Ramsay Sonachand Adhikari Chi Li Igor Aharonovich Hark Hoe Tan Mete Atatüre Hannah L. Stern |
| author_facet | Carmem M. Gilardoni Simone Eizagirre Barker Catherine L. Curtin Stephanie A. Fraser Oliver. F. J. Powell Dillon K. Lewis Xiaoxi Deng Andrew J. Ramsay Sonachand Adhikari Chi Li Igor Aharonovich Hark Hoe Tan Mete Atatüre Hannah L. Stern |
| author_sort | Carmem M. Gilardoni |
| collection | DOAJ |
| description | Abstract Quantum sensing based on solid-state spin defects provides a uniquely versatile platform for nanoscale magnetometry under diverse environmental conditions. Operation of most sensors used to-date is based on projective measurement along a single axis combined with computational extrapolation. Here, we show that an individually addressable carbon-related spin defect in hexagonal boron nitride is a multi-axis nanoscale sensor with large dynamic range. For this spin-1 system, we demonstrate how its spin-dependent photodynamics give rise to three optically detected spin resonances that show up to 90% contrast and are not quenched under off-axis magnetic field exceeding 100 mT, enabling $$\mu \,{{\rm{T}}}/{{{\rm{Hz}}}^{-1/2}}$$ μ T / Hz − 1 / 2 sensitivity. Finally, we show how this system can be used to unambiguously determine the three components of a target magnetic field via the use of two bias fields. Alongside these features, the room-temperature operation and the nanometer-scale proximity enabled by the van der Waals host material further consolidate this system as a promising quantum sensing platform. |
| format | Article |
| id | doaj-art-4dd5900c16cf469e92f8091be795e18e |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-4dd5900c16cf469e92f8091be795e18e2025-08-20T02:03:32ZengNature PortfolioNature Communications2041-17232025-05-011611910.1038/s41467-025-59642-0A single spin in hexagonal boron nitride for vectorial quantum magnetometryCarmem M. Gilardoni0Simone Eizagirre Barker1Catherine L. Curtin2Stephanie A. Fraser3Oliver. F. J. Powell4Dillon K. Lewis5Xiaoxi Deng6Andrew J. Ramsay7Sonachand Adhikari8Chi Li9Igor Aharonovich10Hark Hoe Tan11Mete Atatüre12Hannah L. Stern13Cavendish Laboratory, University of CambridgeCavendish Laboratory, University of CambridgeCavendish Laboratory, University of CambridgeCavendish Laboratory, University of CambridgeCavendish Laboratory, University of CambridgeCavendish Laboratory, University of CambridgeCavendish Laboratory, University of CambridgeHitachi Cambridge Laboratory, Hitachi Europe Ltd.ARC Centre of Excellence for Transformative Meta-Optical Systems, Department of Electronic Materials Engineering, Research School of Physics, The Australian National UniversityARC Centre of Excellence for Transformative Meta-Optical Systems, Faculty of Science, University of Technology SydneyARC Centre of Excellence for Transformative Meta-Optical Systems, Faculty of Science, University of Technology SydneyARC Centre of Excellence for Transformative Meta-Optical Systems, Department of Electronic Materials Engineering, Research School of Physics, The Australian National UniversityCavendish Laboratory, University of CambridgeDepartment of Materials, University of OxfordAbstract Quantum sensing based on solid-state spin defects provides a uniquely versatile platform for nanoscale magnetometry under diverse environmental conditions. Operation of most sensors used to-date is based on projective measurement along a single axis combined with computational extrapolation. Here, we show that an individually addressable carbon-related spin defect in hexagonal boron nitride is a multi-axis nanoscale sensor with large dynamic range. For this spin-1 system, we demonstrate how its spin-dependent photodynamics give rise to three optically detected spin resonances that show up to 90% contrast and are not quenched under off-axis magnetic field exceeding 100 mT, enabling $$\mu \,{{\rm{T}}}/{{{\rm{Hz}}}^{-1/2}}$$ μ T / Hz − 1 / 2 sensitivity. Finally, we show how this system can be used to unambiguously determine the three components of a target magnetic field via the use of two bias fields. Alongside these features, the room-temperature operation and the nanometer-scale proximity enabled by the van der Waals host material further consolidate this system as a promising quantum sensing platform.https://doi.org/10.1038/s41467-025-59642-0 |
| spellingShingle | Carmem M. Gilardoni Simone Eizagirre Barker Catherine L. Curtin Stephanie A. Fraser Oliver. F. J. Powell Dillon K. Lewis Xiaoxi Deng Andrew J. Ramsay Sonachand Adhikari Chi Li Igor Aharonovich Hark Hoe Tan Mete Atatüre Hannah L. Stern A single spin in hexagonal boron nitride for vectorial quantum magnetometry Nature Communications |
| title | A single spin in hexagonal boron nitride for vectorial quantum magnetometry |
| title_full | A single spin in hexagonal boron nitride for vectorial quantum magnetometry |
| title_fullStr | A single spin in hexagonal boron nitride for vectorial quantum magnetometry |
| title_full_unstemmed | A single spin in hexagonal boron nitride for vectorial quantum magnetometry |
| title_short | A single spin in hexagonal boron nitride for vectorial quantum magnetometry |
| title_sort | single spin in hexagonal boron nitride for vectorial quantum magnetometry |
| url | https://doi.org/10.1038/s41467-025-59642-0 |
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