Asymmetric Magnon Frequency Comb

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The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.nanolett.4c01423.

• Details of micromagnetic simulations, identification of the intrinsic magnon excitation, influence of driving frequency on magnon asymmetry, effects of two applied magnetic fields on the comb, combs in the coupled waveguide–vortex structure, and influence of temperature and strain on the MFC (PDF)

• SW propagation when the driving SW is incident from the left port of WG1. Here, the snapshots denote the segment within 150 nm < x < 650 nm and 0 nm < y < 100 nm in our considered model and excitation frequency ω₀/2π = 50 GHz, and the color represents the value of the fluctuation in the x component of magnetization δM_x (Movie S1) (MP4)

• SW propagation when the driving SW is incident from the left port of WG1. Here, the snapshots denote the segment within 325 nm < x < 475 nm and 0 nm < y < 150 nm in our considered model and excitation frequency ω₀/2π = 50 GHz, and the color represents the value of the fluctuation in the z component of magnetization δM_z (Movie S2) (MP4)

• SW propagation when the driving SW is incident from the right port of WG1. Here, the snapshots denote the segment within 150 nm < x < 650 nm and 0 nm < y < 100 nm in our considered model and excitation frequency ω₀/2π = 50 GHz, and the color represents the value of the fluctuation in the x component of magnetization δM_x (Movie S3) (MP4)

• SW propagation when the driving SW is incident from the right port of WG1. Here, the snapshots denote the segment within 325 nm < x < 475 nm and 0 nm < y < 150 nm in our considered model and excitation frequency ω₀/2π = 50 GHz, and the color represents the value of the fluctuation in the z component of magnetization δM_z (Movie S4) (MP4)