Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds
Abstract Quantum magnetometers based on spin defects in solids enable sensitive imaging of various magnetic phenomena, such as ferro- and antiferromagnetism, superconductivity, and current-induced fields. Existing protocols primarily focus on static fields or narrow-band dynamical signals, and are o...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-55956-1 |
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| author | K. Herb L. A. Völker J. M. Abendroth N. Meinhardt L. van Schie P. Gambardella C. L. Degen |
| author_facet | K. Herb L. A. Völker J. M. Abendroth N. Meinhardt L. van Schie P. Gambardella C. L. Degen |
| author_sort | K. Herb |
| collection | DOAJ |
| description | Abstract Quantum magnetometers based on spin defects in solids enable sensitive imaging of various magnetic phenomena, such as ferro- and antiferromagnetism, superconductivity, and current-induced fields. Existing protocols primarily focus on static fields or narrow-band dynamical signals, and are optimized for high sensitivity rather than fast time resolution. Here, we report detection of fast signal transients, providing a perspective for investigating the rich dynamics of magnetic systems. We experimentally demonstrate our technique using a single nitrogen-vacancy (NV) center magnetometer at room temperature, reaching a best-effort time resolution of 1.1 ns, an instantaneous bandwidth of 0.9 GHz, and a time-of-flight precision better than 20 ps. The time resolution can be extended to the picosecond range by use of on-chip waveguides. At these speeds, NV quantum magnetometers will become competitive with time-resolved synchrotron X-ray techniques. Looking forward, adding fast temporal resolution to the spatial imaging capability further promotes single-spin probes as powerful research tools in spintronics, mesoscopic physics, and nanoscale device metrology. |
| format | Article |
| id | doaj-art-b1e9aca664af434993c318c985fe0332 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-b1e9aca664af434993c318c985fe03322025-01-19T12:30:53ZengNature PortfolioNature Communications2041-17232025-01-011611910.1038/s41467-025-55956-1Quantum magnetometry of transient signals with a time resolution of 1.1 nanosecondsK. Herb0L. A. Völker1J. M. Abendroth2N. Meinhardt3L. van Schie4P. Gambardella5C. L. Degen6Department of Physics, ETH ZürichDepartment of Physics, ETH ZürichDepartment of Physics, ETH ZürichDepartment of Physics, ETH ZürichDepartment of Physics, ETH ZürichDepartment of Materials, ETH ZürichDepartment of Physics, ETH ZürichAbstract Quantum magnetometers based on spin defects in solids enable sensitive imaging of various magnetic phenomena, such as ferro- and antiferromagnetism, superconductivity, and current-induced fields. Existing protocols primarily focus on static fields or narrow-band dynamical signals, and are optimized for high sensitivity rather than fast time resolution. Here, we report detection of fast signal transients, providing a perspective for investigating the rich dynamics of magnetic systems. We experimentally demonstrate our technique using a single nitrogen-vacancy (NV) center magnetometer at room temperature, reaching a best-effort time resolution of 1.1 ns, an instantaneous bandwidth of 0.9 GHz, and a time-of-flight precision better than 20 ps. The time resolution can be extended to the picosecond range by use of on-chip waveguides. At these speeds, NV quantum magnetometers will become competitive with time-resolved synchrotron X-ray techniques. Looking forward, adding fast temporal resolution to the spatial imaging capability further promotes single-spin probes as powerful research tools in spintronics, mesoscopic physics, and nanoscale device metrology.https://doi.org/10.1038/s41467-025-55956-1 |
| spellingShingle | K. Herb L. A. Völker J. M. Abendroth N. Meinhardt L. van Schie P. Gambardella C. L. Degen Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds Nature Communications |
| title | Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds |
| title_full | Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds |
| title_fullStr | Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds |
| title_full_unstemmed | Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds |
| title_short | Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds |
| title_sort | quantum magnetometry of transient signals with a time resolution of 1 1 nanoseconds |
| url | https://doi.org/10.1038/s41467-025-55956-1 |
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