Anomalous coherent and dissipative coupling in dual photon-magnon hybrid resonators

Haechan Jeon; Bojong Kim; Junyoung Kim; Biswanath Bhoi; Sang-Koog Kim

doi:10.1038/s41598-024-64315-x

Scientific Reports (Jun 2024)

Anomalous coherent and dissipative coupling in dual photon-magnon hybrid resonators

Haechan Jeon,
Bojong Kim,
Junyoung Kim,
Biswanath Bhoi,
Sang-Koog Kim

Affiliations

Haechan Jeon: Department of Materials Science and Engineering, National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Seoul National University
Bojong Kim: Department of Materials Science and Engineering, National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Seoul National University
Junyoung Kim: Department of Materials Science and Engineering, National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Seoul National University
Biswanath Bhoi: Department of Materials Science and Engineering, National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Seoul National University
Sang-Koog Kim: Department of Materials Science and Engineering, National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Seoul National University

DOI: https://doi.org/10.1038/s41598-024-64315-x
Journal volume & issue: Vol. 14, no. 1
pp. 1 – 11

Abstract

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Abstract We explored the distinctive behavior of coherent and dissipative photon-magnon coupling (PMC) in dual hybrid resonators, each incorporating an Inverted Split-Ring Resonator (ISRR) paired with a Yttrium Iron Garnet (YIG) film, positioned in close proximity but with varying relative split-gap orientations. These orientations led to notable shifts in the dispersion spectra, characterized by level repulsion and attraction, signaling coherent and dissipative coupling, respectively, in single ISRR/YIG hybrids at certain orientations. Through analytical modeling, we determined that the observed shifts in coupling types are primarily due to the effect of photon-photon (ISRR-ISRR) interactions altering the phase difference between the coupled ISRR and magnon modes. Our findings highlight that precise manipulation of the relative split-gap orientations in the ISRR resonators enables controlled coherent and dissipative coupling within planar PMC systems. This capability opens new avenues for applications in quantum information technologies and quantum materials.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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