2014/12/31 by Yunshan Cao, Peng Yan, Hans Huebl +3 · 5 citations
Physics and Astronomy · #Atomic physics #Condensed matter physics #Coupling (piping) #Ferromagnetic resonance #Ferromagnetism #Magnetic field #Magnetic properties of thin films #Magnon #Materials science #Mechanical and Optical Resonators #Microwave #Mode (computer interface) #Physics #Polariton #Quantum and electron transport phenomena #Quantum mechanics #Resonance (particle physics) #Scattering #Spin (aerodynamics) #Spin wave #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.91.094423
published as Phys. Rev. B 91, 094423 (2015) · 5 pages, 4 figures
arxiv created 2015/03/24 · openalex publication_date 2015/03/24 · arxiv updated 2015/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We formulate a scattering theory to study magnetic films in microwave cavities beyond the independent-spin and rotating-wave approximations of the Tavis-Cummings model. We demonstrate that strong coupling can be realized not only for the ferromagnetic resonance mode, but also for spin-wave resonances; the coupling strengths are mode dependent and decrease with increasing mode index. The strong-coupling regime can also be accessed electrically by spin pumping into a metal contact.