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Analysis of Parametric Instability of Waves in Magnetic Nanogratings from the Bifurcation Points of the Nonlinear Maxwell Operator

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Abstract

A technique for studying parametric instabilities in magnetic nanostructures is worked out using the developed computational algorithm for determining the bifurcation points of the nonlinear Maxwell operator. The instability of the process of parametric excitation of magnetostatic and spin waves (oscillations) in 2D gratings of magnetic nanoparticles (MNPs) is studied numerically as a function of the bifurcation parameters (the pump wave amplitude and frequency). The threshold values of the parametric instability of magnetostatic and spin oscillations in 2D grating of MPs (of micro- and nanosizes) are calculated depending on the distance between MNPs (the grating period).

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. Instrumentation, Information Technology and Electronics Faculty, Penza State University, 440026, Penza, Russia

    G. S. Makeeva

  2. Penza State University, 440026, Penza, Russia

    G. S. Makeeva

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  1. G. S. Makeeva
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Correspondence to G. S. Makeeva.

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Translated by N. Wadhwa

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Makeeva, G.S. Analysis of Parametric Instability of Waves in Magnetic Nanogratings from the Bifurcation Points of the Nonlinear Maxwell Operator. Tech. Phys. 68, 183–186 (2023). https://doi.org/10.1134/S1063784223070022

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  • DOI: https://doi.org/10.1134/S1063784223070022

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