Magnonic frequency combs consist of a set of discrete and equally spaced frequencies,which play an important role in high-precision frequency measurement.In this paper,the generation and control of magnonic frequency combs in the magnomechanical system is studied.Using the Runge-Kuta method to numerically solve the Heisenberg-Langevin equation to obtain the dynamic evolution of the system,and making the fast fourier transform to achieve the magnonic spectrum.Under a strong microwave drive field,the magnetostric-tive interaction induced magnomechanical nonlinearity can lead to second-order,third-order or even high-order sideband components in the spectrum.When the intensity of the microwave drive field increases,the number of orders of the high-order sidebands spectrum in-creases and the amplitude of each sideband becomes larger.The plateau region becomes wider as the intensity of the microwave drive field increases.The results are beneficial for the understanding of nonlinear magnonic dynamics,and provide a promising route for high-precision microwave frequency metrology.
关键词
磁致伸缩相互作用/磁力非线性/四波混频/磁振子频梳
Key words
magnetostrictive interaction/magnomechanical nonlinearity/four-wave mixing/magnonic frequency combs
维普
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