标题： 脉冲激光沉积制备的外延YIG薄膜的结构与磁性性质之间的相关性 显示英文标题

标题： Correlation between structural and magnetic properties of epitaxial YIG films by pulsed laser deposition

摘要： 在本研究中，我们研究了外延生长条件、晶体微结构和磁性质之间的关系，这些外延钇铁石榴石（Y$_3$Fe$_5$O$_{12}$，YIG）薄膜沉积在镓钆石榴石（Ga$_3$Gd$_5$O$_{12}$，GGG）上。 观察到了残余外延应变与体磁性质（如饱和磁化强度和磁阻尼）以及基于这些薄膜的自旋波传输器件性能之间的直接相关性。 这种相关性提供了一种简化且快速评估YIG薄膜质量的途径，避免了复杂且耗时的表征技术。 此外，我们还报告了对脉冲激光沉积参数的全面研究，包括沉积温度、压力、激光通量、频率和退火条件。 通过系统的沉积优化，可以获得表现出超低磁阻尼的状态先进YIG薄膜，这对于高性能自旋电子应用至关重要。 显示英文摘要

摘要： In this study, we investigate the relationships between film growth conditions, crystalline microstructure, and magnetic properties of epitaxial Yttrium Iron Garnet (Y$_3$Fe$_5$O$_{12}$, YIG) thin films, deposited on Gallium Gadolinium Garnet (Ga$_3$Gd$_5$O$_{12}$, GGG). A direct correlation was observed between the residual epitaxial strain, bulk magnetic properties like saturation magnetization and magnetic damping), and the performance of spin-wave transmission devices based on these films. This correlation offers a pathway for a simplified, rapid assessment of YIG film quality, avoiding the need for complex time-consuming characterization techniques. In addition, we report a comprehensive investigation into the influence of pulsed-laser deposition parameters, including deposition temperature, pressure, laser fluence, frequency, and annealing conditions. Through systematic deposition optimization, state-of-the-art YIG films exhibiting ultralow magnetic damping could be obtained, which is critical for high-performance spintronic applications.