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Article Dans Une Revue Physical Review Applied Année : 2023

Generation of Circulating Cavity Magnon Polaritons

Résumé

We experimentally realize circularly polarized unidirectional cavity magnon polaritons in a torus-shaped microwave cavity loaded by a small magnetic sphere. At special positions, the clockwise and counterclockwise modes are circularly polarized, such that only one of them couples to the magnet, which breaks the mode degeneracy. We reveal the chiral nature of the spectral energy and angular-momentum flow by observing and modeling nonreciprocities of the microwave scattering matrix.

Dates et versions

hal-04135581 , version 1 (21-06-2023)

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Jeremy Bourhill, Weichao Yu, V. Vlaminck, Gerrit Bauer, Giuseppe Ruoso, et al.. Generation of Circulating Cavity Magnon Polaritons. Physical Review Applied, 2023, 19 (1), pp.014030. ⟨10.1103/PhysRevApplied.19.014030⟩. ⟨hal-04135581⟩
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