Generation of microwaves with tuneable frequencies in ultracompact “magnon microwave antenna” via phonon-magnon-photon coupling

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SUMMARY

    Some electric/magnetic_field as an external bias is required in controlling the STOs, M local magnetization, |γ | is gyromagnetic ratio (GHz/T), H eff is the effective magnetic_field originates from demagnetization energy, exchange energy, magnetic and shape anisotropy, α is the Gilbert damping factor, μ0 is the free space permeability, M S is the saturation magnetization (A/m) α ∂M ∂M =|γ | M × Heff + M× ∂t MS ∂t 1 ∂E Heff=- ·. Simulations performed with the typical dimensions of NWs are 512 × 120 × 40 nm as depicted in Fig 2(a) with different "s" values (20-160 nm), where . . .

     

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