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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.10302 |
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| _version_ | 1866918139931918336 |
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| author | Thomas, Toji MacDonald, Kevin F. Plum, Eric |
| author_facet | Thomas, Toji MacDonald, Kevin F. Plum, Eric |
| contents | The sensitivity of mechanical resonators to physical quantities such as acceleration, pressure, mass and temperature enables them to underpin sensing and metrology applications. Here, we observe that the resonance frequency of a nanomechanical resonator depends strongly on charging. We show that repulsion between an electron beam and charge accumulated on a nanomechanical cantilever yields a stiffening that increases its resonance frequency, providing a mechanism for controlling resonators and sensing charge. For a cantilever of microscale length and nanoscale cross-section interacting with the electron beam of a scanning electron microscope, we observe a resonance shift on the order of 1% per nanocoulomb. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_10302 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Control of nanomechanical resonances by an electron beam Thomas, Toji MacDonald, Kevin F. Plum, Eric Applied Physics The sensitivity of mechanical resonators to physical quantities such as acceleration, pressure, mass and temperature enables them to underpin sensing and metrology applications. Here, we observe that the resonance frequency of a nanomechanical resonator depends strongly on charging. We show that repulsion between an electron beam and charge accumulated on a nanomechanical cantilever yields a stiffening that increases its resonance frequency, providing a mechanism for controlling resonators and sensing charge. For a cantilever of microscale length and nanoscale cross-section interacting with the electron beam of a scanning electron microscope, we observe a resonance shift on the order of 1% per nanocoulomb. |
| title | Control of nanomechanical resonances by an electron beam |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2509.10302 |