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Fraction-order sideband generation in a driven magnomechanical system

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  • Wu, Qin
  • Chen, Yu-Dong
  • Liu, Zeng-Xing

Abstract

We report a novel mechanism for generating fraction-order sidebands in a driven magnomechanical system, arising from the nonlinear cascading processes between magnetostatic and mechanical modes. Under coherent microwave driving with multiple frequencies, the system exhibits rich dynamics, including fractional-order sidebands at rational fractions of the mechanical frequency, a phenomenon distinct from conventional higher-order sidebands. This effect is tunable via the driving field detuning and intensity, offering a versatile platform for precision metrology and magnonic frequency comb applications. Numerical calculations of both magnonic and phononic dynamics show excellent agreement with this theoretical framework. This work uncovers a novel regime in hybrid magnomechanics that provides fresh perspectives on manipulating multi-wave mixing processes, advancing applications from microwave-to-optical transduction to on-chip signal processing in magnonics.

Suggested Citation

  • Wu, Qin & Chen, Yu-Dong & Liu, Zeng-Xing, 2025. "Fraction-order sideband generation in a driven magnomechanical system," Chaos, Solitons & Fractals, Elsevier, vol. 200(P2).
    • Handle: RePEc:eee:chsofr:v:200:y:2025:i:p2:s0960077925010859
    DOI: 10.1016/j.chaos.2025.117072
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