Monolithic piezo-magnonic-MEMS for efficient modulation of RF signals
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866911553597472768 |
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| author | Cocconcelli, M. Angotti, A. Florio, P. Pellizzi, N. Maspero, F. Bertacco, R. |
| author_facet | Cocconcelli, M. Angotti, A. Florio, P. Pellizzi, N. Maspero, F. Bertacco, R. |
| contents | Compact, low-power analog RF components are essential for next-generation microwave electronics and wireless systems. We demonstrate an all-electric integrated piezo-magnonic microelectromechanical system that enables efficient voltage control of GHz spin-wave signals via magnetoelastic coupling. Exploiting the large strain in a CoFeB magnonic waveguide integrated on a silicon bridge with piezoelectric actuation, very large values of the magnetoelectric field (up to $30\,\mathrm{mT}$ at $30\,\mathrm{V}$) are obtained, thus achieving reversible phase and amplitude control of propagating spin waves. In the static regime, we achieve either up to $4π$ phase modulation or $\approx 50\,\mathrm{dB}$ amplitude attenuation with drive voltages below $20\,\mathrm{V}$ at $7\,\mathrm{GHz}$. Leveraging the bridge's first bending resonance ($\approx 17\,\mathrm{kHz}$) yields resonant enhancement of the phase modulation efficiency. This allows us to achieve a $2π$ phase swing with just $2.2\,\mathrm{V}$ drive and power consumption of $\approx 6\,μ\mathrm{W}$. Our results highlight piezo-magnonic MEMS as a promising new class of devices for reconfigurable RF front ends and analog signal processors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_28411 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Monolithic piezo-magnonic-MEMS for efficient modulation of RF signals Cocconcelli, M. Angotti, A. Florio, P. Pellizzi, N. Maspero, F. Bertacco, R. Applied Physics Compact, low-power analog RF components are essential for next-generation microwave electronics and wireless systems. We demonstrate an all-electric integrated piezo-magnonic microelectromechanical system that enables efficient voltage control of GHz spin-wave signals via magnetoelastic coupling. Exploiting the large strain in a CoFeB magnonic waveguide integrated on a silicon bridge with piezoelectric actuation, very large values of the magnetoelectric field (up to $30\,\mathrm{mT}$ at $30\,\mathrm{V}$) are obtained, thus achieving reversible phase and amplitude control of propagating spin waves. In the static regime, we achieve either up to $4π$ phase modulation or $\approx 50\,\mathrm{dB}$ amplitude attenuation with drive voltages below $20\,\mathrm{V}$ at $7\,\mathrm{GHz}$. Leveraging the bridge's first bending resonance ($\approx 17\,\mathrm{kHz}$) yields resonant enhancement of the phase modulation efficiency. This allows us to achieve a $2π$ phase swing with just $2.2\,\mathrm{V}$ drive and power consumption of $\approx 6\,μ\mathrm{W}$. Our results highlight piezo-magnonic MEMS as a promising new class of devices for reconfigurable RF front ends and analog signal processors. |
| title | Monolithic piezo-magnonic-MEMS for efficient modulation of RF signals |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2603.28411 |