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Parametric frequency mixing in a magnetoelastically driven linear ferromagnetic-resonance oscillator

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Temnov,  Vasily
IMMM CNRS 6283, Université du Maine;
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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PhysRevB.95.060409.pdf
(Publisher version), 2MB

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Citation

Chang, C. L., Lomonosov, A. M., Janusonis, J., Vlasov, V. S., Temnov, V., & Tobey, R. I. (2017). Parametric frequency mixing in a magnetoelastically driven linear ferromagnetic-resonance oscillator. Physical Review B, 95(6): 060409. doi:10.1103/PhysRevB.95.060409.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-950A-F
Abstract
We demonstrate the linear frequency conversion of ferromagnetic resonance (FMR) frequency by optically excited elastic waves in a thin metallic film on dielectric substrates. Time-resolved probing of the magnetization directly witnesses magnetoelastically driven parametric second-harmonic generation, sum- and difference-frequency mixing from two distinct frequencies, as well as excitation of parametric resonances. Starting from the Landau-Lifshitz-Gilbert equations, we derive an analytical equation of an elastically driven (nonlinear) parametric oscillator and show that frequency mixing is dominated by the parametric modulation of the linear FMR oscillator.