Exchange magnon-polaritons in microwave cavities

Yunshan Cao, Peng Yan, Hans Huebl, Sebastian T.B. Goennenwein, Gerrit E.W. Bauer

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number094423
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume91
Issue number9
DOIs
Publication statusPublished - 2015 Mar 24

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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