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arXiv · 2607.07499

Nonlinear Dynamics of Hopfion for Frequency Multiplication

Waleed I. Waseer·Yunshan Cao·Peng Yan
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Abstract

Hopfions, associated with higher-dimensional topology through the Hopf fibration, exhibit {exotic} features like {complex knot} and improved stability compared to skyrmions, enhancing their appeal for innovative applications. In this paper, we study the nonlinear response of magnetic Hopfion to microwave fields. {We observe the emergence of higher-order harmonics of the driving microwave field as it interacts with the Hopfion}. By carefully selecting the {driving frequency, the corresponding harmonic can efficiently excite localized magnon state of a Hopfion. Our results demonstrate the promising potential of hopfions in nonlinear magnonics.

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Waleed I. Waseer, Yunshan Cao, Peng Yan. 2026-07-08. Nonlinear Dynamics of Hopfion for Frequency Multiplication. https://arxiv.org/abs/2607.07499

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