Thermal Evolution of Interphase Interfaces in Multilayer Ferromagnetic Thin Films -- The Interplay of Magnetic Properties and Microstructure

本研究的目标是生长取向的周期性多层薄膜，并表征其铁磁性、界面结构和成分之间的关系。正在研究两个模型实验体系，即锰/金和铁/铂。在相间界面的结构和成分演变与磁性之间建立了直接关联，作为所选择的增量退火处理的函数。实验技术包括透射电子显微镜、X射线衍射仪、振动样品和扭矩磁强计以及铁磁共振。直流溅射被用于制备多层膜，这是一种新的材料类别，具有其他材料无法获得的独特性能。

The goal of this research is to grow oriented periodic multilayer thin films and characterize relationships between their ferromagnetic properties, interfacial structure and composition. Two model experimental systems, manganese/gold and iron/platinum, are being examined. Direct correlations are established between the structural and compositional evolution of the interphase interfaces and magnetic properties as a function of selected incremental annealing treatments. Experimental techniques include transmission electron microscopy, X-ray diffraction, vibrating sample and torque magnetometer, and ferromagnetic resonance. DC sputtering is used to create the multilayer films, which are a new class of materials offering the potential of possessing unique properties not attainable in other materials.