Magnetic spheres in microwave cavities

Babak Zare Rameshti, Yunshan Cao, Gerrit E.W. Bauer

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)


We apply Mie scattering theory to study the interaction of magnetic spheres with microwaves in cavities beyond the magnetostatic and rotating wave approximations. We demonstrate that both strong and ultrastrong coupling can be realized for stand alone magnetic spheres made from yttrium iron garnet (YIG), acting as an efficient microwave antenna. The eigenmodes of YIG spheres with radii of the order mm display distinct higher angular momentum character that has been observed in experiments.

Original languageEnglish
Article number214430
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number21
Publication statusPublished - 2015 Jun 25


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