Pulsed magnetic field gradient on a tip for nanoscale imaging of spins
Abstract Nanoscale magnetic resonance imaging (nanoMRI) is crucial for advancing molecular-level structural analysis, yet existing techniques relying on permanent magnets face limitations in controllability and resolution. This study addresses the gap by introducing a switchable magnetic field gradi...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-025-02019-y |
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| author | Leora Schein-Lubomirsky Yarden Mazor Rainer Stöhr Andrej Denisenko Amit Finkler |
| author_facet | Leora Schein-Lubomirsky Yarden Mazor Rainer Stöhr Andrej Denisenko Amit Finkler |
| author_sort | Leora Schein-Lubomirsky |
| collection | DOAJ |
| description | Abstract Nanoscale magnetic resonance imaging (nanoMRI) is crucial for advancing molecular-level structural analysis, yet existing techniques relying on permanent magnets face limitations in controllability and resolution. This study addresses the gap by introducing a switchable magnetic field gradient on a scanning tip, enabling localized, high-gradient magnetic fields at the nanoscale. Here, we demonstrate a device combining a metal microwire on a quartz tip with a nitrogen-vacancy (NV) center in diamond, achieving gradients up to 1 μT nm−1 at fields below 200 μT. This allows electron spin mapping with 1 nm resolution, overcoming challenges like emitter contrast and sample preparation rigidity. The current-controlled gradient, switchable in 600 ns, enhances precision and flexibility. Additionally, the metallic tip modifies Rabi power spatially, enabling selective spin manipulation with varying microwave effects. This innovation paves the way for advanced nanoMRI applications, including high-resolution imaging and targeted spin control in quantum sensing and molecular studies. |
| format | Article |
| id | doaj-art-dbacf57eab5c4abd976a30e7e4a0e510 |
| institution | DOAJ |
| issn | 2399-3650 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj-art-dbacf57eab5c4abd976a30e7e4a0e5102025-08-20T03:01:41ZengNature PortfolioCommunications Physics2399-36502025-03-01811710.1038/s42005-025-02019-yPulsed magnetic field gradient on a tip for nanoscale imaging of spinsLeora Schein-Lubomirsky0Yarden Mazor1Rainer Stöhr2Andrej Denisenko3Amit Finkler4Department of Chemical and Biological Physics, Weizmann Institute of ScienceSchool of Electrical Engineering, Tel Aviv UniversityPhysikalisches Institut, Universität StuttgartPhysikalisches Institut, Universität StuttgartDepartment of Chemical and Biological Physics, Weizmann Institute of ScienceAbstract Nanoscale magnetic resonance imaging (nanoMRI) is crucial for advancing molecular-level structural analysis, yet existing techniques relying on permanent magnets face limitations in controllability and resolution. This study addresses the gap by introducing a switchable magnetic field gradient on a scanning tip, enabling localized, high-gradient magnetic fields at the nanoscale. Here, we demonstrate a device combining a metal microwire on a quartz tip with a nitrogen-vacancy (NV) center in diamond, achieving gradients up to 1 μT nm−1 at fields below 200 μT. This allows electron spin mapping with 1 nm resolution, overcoming challenges like emitter contrast and sample preparation rigidity. The current-controlled gradient, switchable in 600 ns, enhances precision and flexibility. Additionally, the metallic tip modifies Rabi power spatially, enabling selective spin manipulation with varying microwave effects. This innovation paves the way for advanced nanoMRI applications, including high-resolution imaging and targeted spin control in quantum sensing and molecular studies.https://doi.org/10.1038/s42005-025-02019-y |
| spellingShingle | Leora Schein-Lubomirsky Yarden Mazor Rainer Stöhr Andrej Denisenko Amit Finkler Pulsed magnetic field gradient on a tip for nanoscale imaging of spins Communications Physics |
| title | Pulsed magnetic field gradient on a tip for nanoscale imaging of spins |
| title_full | Pulsed magnetic field gradient on a tip for nanoscale imaging of spins |
| title_fullStr | Pulsed magnetic field gradient on a tip for nanoscale imaging of spins |
| title_full_unstemmed | Pulsed magnetic field gradient on a tip for nanoscale imaging of spins |
| title_short | Pulsed magnetic field gradient on a tip for nanoscale imaging of spins |
| title_sort | pulsed magnetic field gradient on a tip for nanoscale imaging of spins |
| url | https://doi.org/10.1038/s42005-025-02019-y |
| work_keys_str_mv | AT leorascheinlubomirsky pulsedmagneticfieldgradientonatipfornanoscaleimagingofspins AT yardenmazor pulsedmagneticfieldgradientonatipfornanoscaleimagingofspins AT rainerstohr pulsedmagneticfieldgradientonatipfornanoscaleimagingofspins AT andrejdenisenko pulsedmagneticfieldgradientonatipfornanoscaleimagingofspins AT amitfinkler pulsedmagneticfieldgradientonatipfornanoscaleimagingofspins |