Surface and Interface Magnetic, Electronic and Structural Properties of New Epitaxial, Ultra-thin Film Systems

本研究包括精心制备、表征和研究纳米级尺寸的人工结构材料和系统，特别强调表面、界面和薄膜磁性。这些新材料有望具有专门定制的电和磁性能。它们为系统研究二维相变、增强铁磁性、改变临界现象、磁耦合、邻近和界面效应、磁表面和界面各向异性等基本物理概念提供了良好的基础。电子俘获光谱法和自旋极化法可以探测远程和近程磁序。这些新材料；也使用扫描隧道显微镜进行研究，将包括磁性异质结构与元素，如铁，钴，铬，钒，钯，铽和钆，表现出不寻常的物理性质，如果沉积在选定的衬底和/或与合适的元素界面。这些材料在薄膜磁记录介质和磁头等技术领域具有潜在的应用前景。

This research comprises the careful preparation, characterization and investigation of artificially-structured materials and systems with dimensions at the nanometer level, with particular emphasis on surface, interface and thin film magnetism. These new materials are expected to possess specifically tailored electric and magnetic properties. They provide a sound basis for systematic studies to explore basic concepts in fundamental physics such as phase transitions in two dimensions, enhanced ferromagnetism, altered critical phenomena, magnetic coupling, proximity and interfacial effects, magnetic surface and interface anisotropies. Electron capture spectroscopy and spin-polarized method will probe long range and short range magnetic order. These new materials, which; are also studied using scanning tunneling microscopy, will include magnetic heterostructures with elements such as iron, colbalt, chromium, vanadium, palladium, terbium, and gadolinium that exhibit unusual physical properties if deposited in selected substrates and/or interfaced with suitable elements.These materials have potential application in technological areas such as thin film magnetic recording media and heads.