Fig. 2: Magnon-photon coupling observed in resonator microwave transmission.
From: Probing spin dynamics of ultra-thin van der Waals magnets via photon-magnon coupling
a \({\left|{S}_{21}\right|}^{2}\) as a function static magnetic field B0 and frequency, with the microwave transmission encoded in the color. The results are obtained from the resonator shown in Fig. 1b, c Featuring a loaded quality factor of QL = 4600. b \({\left|{S}_{21}\right|}^{2}\) as a function of frequency at fixed magnetic fields, indicated in a by dashed vertical lines. c, d Resonance frequency \({\omega }_{{{{{{{{\rm{res}}}}}}}}}\) and effective loss rate κeff as a function of magnetic field. Note the multiple resonance peaks, indicating multiple CGT FMRs. The dashed orange lines are results from the semi-optimized fit. d exemplary includes the individual peaks of which the orange dashed lines consists. The green bar in c, d highlights the main mode.
