Superlattices, Multilayers and Metastable Systems

各种超晶格、多层膜和亚稳固体 将通过分子束外延（MBE）和先进的 溅射，并通过x射线衍射，透射 电子显微镜和其他微结构技术。 在 稀土超晶格，磁性，自旋 结构和层间耦合将被探索。 定期作为 以及非周期性超晶格。 他们将 研究共线和螺旋自旋结构的联系 在钆镝超晶格中。 铁钴基 超晶格非常适合研究 薄磁层的磁特性和由于 层厚度、晶体取向和界面 偶合器. 在多层体系中，薄合金的行为 晶体和非晶体层，以及铁磁层， 或旋转玻璃，将被研究。 磁表面各向异性， 其对层厚度和晶体取向的依赖性， 垂直表面各向异性的可能性将是 在超晶格和多层系统中进行了研究。 一些 锰基和铁基可熔合金系统将 也被研究。

A variety of superlattices, multilayers and metastable solids will be fabricated by molecular beam epitaxy (MBE) and advanced sputtering, and characterized by x-ray diffraction, transmission electron microscopy and other microstructure techniques. In the rare earth superlattices, the magnetic properties, tailored spin structures and interlayer coupling will be explored. Periodic as well as aperiodic superlattices will be studied. They will investigate the linkage of collinear and helical spin structures in gadolinium-dysprosium superlattices. Iron and cobalt based superlattices are well suited for the investigation of the magnetic properties of thin magnetic layers and effects due to layer thickness, crystalline orientation and interfacial coupling. In multilayer systems, the behavior of thin alloy layers, both cryatalline and amorphous, and either ferromagnetic or spin glasss, will be studied. Magnetic surface anisotropy, its dependence on layer thickness and crystalline orientation, and the possibility of perpendicular surface anisotropy will be investigated in superlattice and multilayer systems. A number of manganese-based and iron-based metastasble alloy systems will also be studied.