This theoretical study unveils the potential for ultrafast skyrmion generation in magnetic thin films, driven by the remarkable plasmonic properties of gold nanoparticles. By combining the plasmonic, photothermal, and micromagnetic analysis, we explore size-dependent light absorption, resonance wavelength, and electric field distribution around the nanoparticles. Our findings highlight the crucial role of the insulating layer's thickness in enhancing plasmonic effects, offering tunable absorption characteristics. Micromagnetic calculations demonstrate the efficient creation of Néel skyrmions in the range of a few tens of ps, showcasing a breakthrough in magnetic phenomena and opening thus a path for functional skyrmionic-based devices.

中文翻译：

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通过等离子体共振产生超快斯格明子

这项理论研究揭示了在金纳米颗粒卓越的等离子体特性的驱动下，磁性薄膜中超快斯格明子产生的潜力。通过结合等离子体、光热和微磁分析，我们探索了纳米粒子周围的尺寸依赖性光吸收、共振波长和电场分布。我们的研究结果强调了绝缘层厚度在增强等离子体效应、提供可调吸收特性方面的关键作用。微磁计算证明了在几十皮秒范围内有效产生尼尔斯格明子，展示了磁现象的突破，从而为基于斯格明子的功能性器件开辟了道路。