Bias-field control of the Neel skyrmion nonlinearity in a confined nanostructure
Abstract
We study the nonlinear dynamics of a cylindrical skyrmion-based oscillator within the framework of a generalized Thiele model. We demonstrate the influence of an bias magnetic field applied perpendicular to the plane of the nanocylinder on the oscillation frequency and on the nonlinearity coefficient. It is shown that the field tunes the response frequency, while also producing a substantial change in the nonlinear frequency shift. We find that the nonlinearity coefficient reverses its sign as the field crosses a certain critical value. The variation of the nonlinearity coefficient with the field is clearly illustrated by the observed qualitative changes in nonlinear amplitude-frequency responses. Controlling the nonlinear properties of a skyrmion oscillator by changing the bias magnetic field opens up prospects for creating tunable computational elements for neuromorphic applications.
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BibTeX
@misc{valkov2026biasfield,
title = {{Bias-field control of the Neel skyrmion nonlinearity in a confined nanostructure}},
author = {A. V. Valkov and A. A. Matveev and O. Yu. Arkhipova and R. V. Shcherbakov and A. R. Safin and S. A. Nikitov},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.04972},
eprint = {2609.04972},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.04972},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Bias-field control of the Neel skyrmion nonlinearity in a confined nanostructure
AU - A. V. Valkov
AU - A. A. Matveev
AU - O. Yu. Arkhipova
AU - R. V. Shcherbakov
AU - A. R. Safin
AU - S. A. Nikitov
PY - 2026
DA - 2026/09/04
PB - arXiv
DO - 10.48550/arxiv.2609.04972
UR - https://arxiv.org/abs/2609.04972
AB - We study the nonlinear dynamics of a cylindrical skyrmion-based oscillator within the framework of a generalized Thiele model. We demonstrate the influence of an bias magnetic field applied perpendicular to the plane of the nanocylinder on the oscillation frequency and on the nonlinearity coefficient. It is shown that the field tunes the response frequency, while also producing a substantial change in the nonlinear frequency shift. We find that the nonlinearity coefficient reverses its sign as the field crosses a certain critical value. The variation of the nonlinearity coefficient with the field is clearly illustrated by the observed qualitative changes in nonlinear amplitude-frequency responses. Controlling the nonlinear properties of a skyrmion oscillator by changing the bias magnetic field opens up prospects for creating tunable computational elements for neuromorphic applications.
ER -