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arXiv · 2006.02203

Circulating cavity magnon polaritons

Weichao Yu·Tao Yu·Gerrit E. W. Bauer
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Abstract

We predict magnon polariton states circulating unidirectionally in a microwave cavity when loaded by a number of magnets on special lines. Realistic finite-element numerical simulations, including dielectric, time-dependent and non-linear effects, confirm the validity of the approximations of a fully analytical input-output model. We find that a phased antenna array can focus all power into a coherent microwave beam with controlled direction and an intensity that scales with the number of magnets.

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Weichao Yu, Tao Yu, Gerrit E. W. Bauer. 2020-06-03. Circulating cavity magnon polaritons. https://doi.org/10.1103/physrevb.102.064416

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