标题： 光驱动的混合纳米尺度系统中邻近增强功能的调制 显示英文标题

标题： Light-driven modulation of proximity-enhanced functionalities in hybrid nano-scale systems

摘要： 推进量子信息和通信技术（qICT）需要更小、更快且具有主动控制功能的组件。 本工作提出了一种新的策略，通过光控制的邻近效应动态调制磁性。 我们使用由靠近钴金属铁磁表面的C60分子组成的混合纳米尺度系统来演示这一概念，其中邻近相互作用特别强。 我们的研究结果表明，通过用共振超短光脉冲在C60分子中产生激子，我们可以显著改变钴/C60界面的相互作用，导致钴的偶极铁磁共振模式频率出现显著的60%瞬时偏移。 该效应通过专门设计的时间分辨磁光克尔效应（tr-MOKE）实验检测到，在数百皮秒的时间尺度上持续存在。 由于这种频率偏移直接与各向异性场（技术应用中的关键参数）的瞬时变化相关，我们的研究结果建立了一个新的范例，用于在纳米尺度上对磁性进行超快光学控制。 显示英文摘要

摘要： Advancing quantum information and communication technology (qICT) requires smaller and faster components with actively controllable functionalities. This work presents a novel strategy for dynamically modulating magnetic properties via proximity effects controlled by light. We demonstrate this concept using hybrid nanoscale systems composed of C60 molecules proximitized to a cobalt metallic ferromagnetic surface, where proximity interactions are particularly strong. Our findings show that by inducing excitons in the C60 molecules with resonant ultrashort light pulses, we can significantly modify the interaction at the cobalt/C60 interface, leading to a striking 60% transient shift in the frequency of the dipolar ferromagnetic resonance mode of the Cobalt. This effect, detected via a specifically designed time-resolved magneto-optical Kerr effect (tr-MOKE) experiment, persists on a timescale of hundreds of picoseconds. Since this frequency shift directly correlates with a transient change in the anisotropy field (an essential parameter for technological applications) our findings establish a new paradigm for ultrafast optical control of magnetism at the nanoscale.