Exchange magnon-polaritons in microwave cavities

By Yunshan Cao, P. Yan, H. Huebl, S. Goennenwein, G. Bauer. 2014

146 citations recorded by the source corpus.

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.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/a9611e3598046fdac856a8b535b75acdb11c9d85