标题： 人工自旋晶格中受控结构无序的动力学指纹 显示英文标题

标题： Dynamic Fingerprint of Controlled Structural Disorder in Artificial Spin Lattices

摘要： 研究无序相互作用系统中复杂性的出现，对于自旋玻璃物理等领域的研究仍具挑战性，因为很难进行系统的实验调节。 我们引入了一个可调谐的人工自旋晶格平台，以直接探测受控结构无序与集体自旋波动力学之间的联系。 通过精确调整Ni81Fe19纳米棒阵列的位置和旋转随机性，从周期性到随机性，我们绘制了从离散光谱模式演化为复杂的密集能带的过程。 至关重要的是，我们建立了静态无序的信息论测量值与GHz自旋波响应动态光谱复杂性之间的定量关联。 这种关联为由调节无序引起的日益复杂的能量景观提供了动态指纹。 此外，通过热 Brillouin 光散射的热探测显示，无序状态下的微观态多样性比使用宽带铁磁共振的驱动探测丰富得多。 我们的工作为研究玻璃物理成分如何体现在高频动力学中提供了一个独特的实验测试平台，为理解相互作用纳米磁系统中复杂性的起源提供了定量见解。 显示英文摘要

摘要： Investigating the emergence of complexity in disordered interacting systems, central to fields like spin glass physics, remains challenging due to difficulties in systematic experimental tuning. We introduce a tunable artificial spin lattice platform to directly probe the connection between controlled structural disorder and collective spin-wave dynamics. By precisely varying positional and rotational randomness in Ni81Fe19 nanobar arrays from periodic to random, we map the evolution from discrete spectral modes to a complex, dense manifold. Crucially, we establish a quantitative correlation between information-theoretic measures of static disorder and the dynamic spectral complexity derived from the GHz spin-wave response. This correlation provides a dynamic fingerprint of an increasingly complex energy landscape resulting from tuned disorder. Furthermore, thermal probe via thermal Brillouin light scattering reveal significantly richer microstates diversity in disordered states than driven probe using broadband ferromagnetic resonance. Our work presents a unique experimental testbed for studying how the ingredients of glassy physics manifest in high-frequency dynamics, offering quantitative insights into the onset of complexity in interacting nanomagnet systems.