A magneto-mechanical gyroscope with spintronic readout

Abstract

Gyroscopes are essential elements in navigation, consumer electronics, robotics, and aerospace applications. Most micro electro-mechanical systems (MEMS) implementations rely on capacitive sensing mechanisms, which limit the dimensional scaling to the micrometer scale. In this work, we introduce a MEMS-like two-degree-of-freedom (2-DOF) gyroscope that exploits the rectification functionality of magnetic tunnel junctions (MTJs) as its readout mechanism and as the transducer of the mechanical dynamics. Experimentally characterized MTJs have been used to calibrate and perform an experiment-informed design of the magneto-mechanical model combining micromagnetic theory with 2-DOF mechanical equations. We demonstrated that the output is linear with angular rate, and that the proposed device is able to extract the angular rate in dynamic cases exploiting a homodyne demodulation approach. The results open a path towards a compact, complementary metal-oxide semiconductor (CMOS)-compatible readout pathway that relaxes reliance on tight capacitive gaps and motivates multi-physics designs of the device.

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Cite

BibTeX RIS

BibTeX

@misc{meo2026magnetomechanical,
  title = {{A magneto-mechanical gyroscope with spintronic readout}},
  author = {Andrea Meo and Francesca Garesci and Pedro Bossi Nunez and Maddalena Fiorentino and Teresa Natale and Ludovico Dindelli and Victor Lopez-Dominguez and Banibrato Sinha and Riccardo Tomasello and Francesco Dell'Olio and Pedram Khalili Amiri and Mario Carpentieri and Giovanni Finocchio},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.05668},
  eprint = {2609.05668},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.05668},
  note = {CC BY-NC-ND 4.0},
}

RIS

TY  - UNPB
TI  - A magneto-mechanical gyroscope with spintronic readout
AU  - Andrea Meo
AU  - Francesca Garesci
AU  - Pedro Bossi Nunez
AU  - Maddalena Fiorentino
AU  - Teresa Natale
AU  - Ludovico Dindelli
AU  - Victor Lopez-Dominguez
AU  - Banibrato Sinha
AU  - Riccardo Tomasello
AU  - Francesco Dell'Olio
AU  - Pedram Khalili Amiri
AU  - Mario Carpentieri
AU  - Giovanni Finocchio
PY  - 2026
DA  - 2026/09/04
PB  - arXiv
DO  - 10.48550/arxiv.2609.05668
UR  - https://arxiv.org/abs/2609.05668
AB  - Gyroscopes are essential elements in navigation, consumer electronics, robotics, and aerospace applications. Most micro electro-mechanical systems (MEMS) implementations rely on capacitive sensing mechanisms, which limit the dimensional scaling to the micrometer scale. In this work, we introduce a MEMS-like two-degree-of-freedom (2-DOF) gyroscope that exploits the rectification functionality of magnetic tunnel junctions (MTJs) as its readout mechanism and as the transducer of the mechanical dynamics. Experimentally characterized MTJs have been used to calibrate and perform an experiment-informed design of the magneto-mechanical model combining micromagnetic theory with 2-DOF mechanical equations. We demonstrated that the output is linear with angular rate, and that the proposed device is able to extract the angular rate in dynamic cases exploiting a homodyne demodulation approach. The results open a path towards a compact, complementary metal-oxide semiconductor (CMOS)-compatible readout pathway that relaxes reliance on tight capacitive gaps and motivates multi-physics designs of the device.
ER  -

Abstract

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