In-situ Control of the Photon-Magnon Synchronized Mode in a Miniaturized Magnetometer
Abstract
Photon-magnon synchronized modes (PMSMs) provide a route for magnetic-field sensing by exploiting their enhanced field responsivity due to cusp points (CPs). However, the previous PMSM magnetometer relies on bulky discrete components and lacks in situ control of photon-magnon interactions, limiting its integration and adaptability. Here, we demonstrate a miniaturized PMSM magnetometer integrated on a printed circuit board. A variable resistor is used to tune the photon-magnon coupling strength in situ. By adjusting the variable resistor, the electromagnetic boundary condition of the magnetometer is altered; hence, the reservoir-mediated photon-magnon interaction is changed. The coupling strength shows a non-monotonic dependence on the reflection coefficient adjusted by the variable resistor and reaches its minimum at the impedance matching condition. Furthermore, we develop a non-Hermitian model with standing-wave interference to describe the PMSM dispersion and derive the critical condition for CP formation. This work realizes a compact and tunable PMSM magnetometer and provides a pathway for controlling photon-magnon interactions in integrated magnetic sensing systems.
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BibTeX
@misc{shi2026insitu,
title = {{In-situ Control of the Photon-Magnon Synchronized Mode in a Miniaturized Magnetometer}},
author = {Yuting Shi and Xudong Wang and Yue Zhao and Lijun Yan and Bimu Yao and Shishen Yan and Lihui Bai and Jinwei Rao},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.36705},
eprint = {2610.36705},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.36705},
}
RIS
TY - UNPB
TI - In-situ Control of the Photon-Magnon Synchronized Mode in a Miniaturized Magnetometer
AU - Yuting Shi
AU - Xudong Wang
AU - Yue Zhao
AU - Lijun Yan
AU - Bimu Yao
AU - Shishen Yan
AU - Lihui Bai
AU - Jinwei Rao
PY - 2026
DA - 2026/10/27
PB - arXiv
DO - 10.48550/arxiv.2610.36705
UR - https://arxiv.org/abs/2610.36705
AB - Photon-magnon synchronized modes (PMSMs) provide a route for magnetic-field sensing by exploiting their enhanced field responsivity due to cusp points (CPs). However, the previous PMSM magnetometer relies on bulky discrete components and lacks in situ control of photon-magnon interactions, limiting its integration and adaptability. Here, we demonstrate a miniaturized PMSM magnetometer integrated on a printed circuit board. A variable resistor is used to tune the photon-magnon coupling strength in situ. By adjusting the variable resistor, the electromagnetic boundary condition of the magnetometer is altered; hence, the reservoir-mediated photon-magnon interaction is changed. The coupling strength shows a non-monotonic dependence on the reflection coefficient adjusted by the variable resistor and reaches its minimum at the impedance matching condition. Furthermore, we develop a non-Hermitian model with standing-wave interference to describe the PMSM dispersion and derive the critical condition for CP formation. This work realizes a compact and tunable PMSM magnetometer and provides a pathway for controlling photon-magnon interactions in integrated magnetic sensing systems.
ER -