发表机构
Kotel’nikov Institute of Radio-Engineering and Electronics of RAS; Moscow Institute of Physics and Technology (National Research University); Bauman Moscow State Technical University; National Research University Moscow Power Engineering Institute（俄罗斯科学院科捷利尼科夫无线电电子研究所; 莫斯科物理技术学院（国立大学）; 鲍曼莫斯科国立技术大学; 莫斯科动力学院国立研究大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究在广义 Thiele 模型框架下，探究偏置磁场对圆柱形 Néel 斯格明子基振荡器非线性特性的调控，发现磁场可调控响应频率、改变非线性频移并使非线性系数在临界值处反转，为神经形态应用提供了可调谐计算元件的前景。
AI 中文摘要
我们在广义 Thiele 模型框架下研究圆柱形斯格明子基振荡器的非线性动力学。我们证明了垂直于纳米圆柱平面施加的偏置磁场对振荡频率和非线性系数的影响：该磁场可调控响应频率，同时使非线性频移发生显著变化；当磁场超过某一临界值时，非线性系数会发生符号反转，非线性振幅-频率响应的定性变化清晰展现了非线性系数随磁场的变化规律。通过改变偏置磁场调控斯格明子振荡器的非线性特性，为创建用于神经形态应用的可调谐计算元件开辟了前景。
英文摘要
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.
