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The role of chemical and microstructural inhomogeneities on interface magnetism

机译:化学和微观结构的不均匀性在界面磁性中的作用

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The study of interfacing effects arising when different magnetic phases are in close contact has led to the discovery of novel physical properties and the development of innovative technological applications of nanostructured magnetic materials. Chemical and microstructural inhomogeneities at the interfacial region, driven by interdiffusion processes, chemical reactions and interface roughness may significantly affect the final properties of a material and, if suitably controlled, may represent an additional tool to finely tune the overall physical properties. The activity at the Nanostructured Magnetic Materials Laboratory (nM(2)-Lab) at CNR-ISM of Italy is aimed at designing and investigating nanoscale-engineered magnetic materials, where the overall magnetic properties are dominated by the interface exchange coupling. In this review, some examples of recent studies where the chemical and microstructural properties are critical in determining the overall magnetic properties in core/shell nanoparticles, nanocomposites and multilayer heterostructures are presented.
机译:对不同磁性相紧密接触时产生的界面效应的研究,导致了纳米结构磁性材料新物理性质的发现和创新技术应用的发展。界面区域的化学和微观结构不均匀性(由互扩散过程、化学反应和界面粗糙度驱动)可能会显著影响材料的最终性能,如果得到适当控制,可能是微调整体物理性能的额外工具。意大利CNR-ISM纳米结构磁性材料实验室(nM(2)-实验室)的活动旨在设计和研究纳米级工程磁性材料,其整体磁性由界面交换耦合控制。在这篇综述中,介绍了一些最近的研究实例,其中化学和微观结构特性对确定核/壳纳米颗粒、纳米复合材料和多层异质结构的整体磁性至关重要。

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