{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Shuai J"],"funding":["National Research Foundation of Korea"],"pagination":["30893"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12373738"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["15(1)"],"pubmed_abstract":["Precise control of coupling strength, damping rate and nonreciprocity in photon-magnon systems is essential for advancing hybrid quantum technologies, including reconfigurable microwave components and quantum transducers. Here, we demonstrate magnetic field angle-dependent control of photon-magnon coupling and magnon dissipation in a cross-shaped microwave cavity supporting a spatially nonuniform radio-frequency (rf) magnetic field. By rotating the external magnetic field angle θ relative to the normal of the transmission line within the cavity plane, we simultaneously control the coherent coupling strength [Formula: see text], the ferromagnetic resonance (FMR) damping rate, and the system's nonreciprocal response. The nonuniform rf field selectively excites both the uniform FMR mode and finite-wavevector spin waves in an Yttrium Iron Garnet (YIG) film, enabling angle-dependent two-magnon scattering. While typically regarded as a passive loss mechanism, we show that two-magnon scattering can serve as a dynamic and reversible knob to control magnon damping. Moreover, we realise nonreciprocity originating from the spatial asymmetry of the rf field, in addition to conventional phase-based schemes. These findings introduce new opportunities for in situ control of coherence, dissipation, and nonreciprocity in cavity magnonics, with broad implications for reconfigurable quantum and spintronic systems."],"journal":["Scientific reports"],"pubmed_title":["Reconfigurable control of coherence, dissipation, and nonreciprocity in cavity magnonics."],"pmcid":["PMC12373738"],"funding_grant_id":["No. RS-2024-00347921"],"pubmed_authors":["Bhavsar R","Kim B","Shuai J","Kim J","Kim SK"],"additional_accession":[]},"is_claimable":false,"name":"Reconfigurable control of coherence, dissipation, and nonreciprocity in cavity magnonics.","description":"Precise control of coupling strength, damping rate and nonreciprocity in photon-magnon systems is essential for advancing hybrid quantum technologies, including reconfigurable microwave components and quantum transducers. Here, we demonstrate magnetic field angle-dependent control of photon-magnon coupling and magnon dissipation in a cross-shaped microwave cavity supporting a spatially nonuniform radio-frequency (rf) magnetic field. By rotating the external magnetic field angle θ relative to the normal of the transmission line within the cavity plane, we simultaneously control the coherent coupling strength [Formula: see text], the ferromagnetic resonance (FMR) damping rate, and the system's nonreciprocal response. The nonuniform rf field selectively excites both the uniform FMR mode and finite-wavevector spin waves in an Yttrium Iron Garnet (YIG) film, enabling angle-dependent two-magnon scattering. While typically regarded as a passive loss mechanism, we show that two-magnon scattering can serve as a dynamic and reversible knob to control magnon damping. Moreover, we realise nonreciprocity originating from the spatial asymmetry of the rf field, in addition to conventional phase-based schemes. These findings introduce new opportunities for in situ control of coherence, dissipation, and nonreciprocity in cavity magnonics, with broad implications for reconfigurable quantum and spintronic systems.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Aug","modification":"2026-05-09T10:42:18.654Z","creation":"2026-04-08T00:47:24.987Z"},"accession":"S-EPMC12373738","cross_references":{"pubmed":["40847106"],"doi":["10.1038/s41598-025-15983-w"]}}