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A (closer) look below surfaces and at heterostructures with polarized muons

机译:仔细观察表面下方以及带有极化子的异质结构

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摘要

Positive polarized muons (mu(+)) act as non-destructive, non-invasive, and microscopic probes for local investigations. Over the years they have provided unique information about magnetic, superconducting and other electronic properties of bulk matter. A novel extension of the mu SR technique is given by the availability of mu(+) with 100% spin polarization, and whose energy can be continuously varied from 0.5 to 30 keV. This allows depth-dependent mu SR-studies of thin films, near-surface regions and multilayered structures in the range from similar to 1 to similar to 300 nm. After a brief introduction of the present status of this technique, some experiments are overviewed including depth-dependent studies of thin films and heterostructures of various magnetic and superconducting materials, ranging from cuprates through spin glasses to structures and compounds relevant to spintronics applications.
机译:正极化μ子(mu(+))用作本地研究的非破坏性,非侵入性和微观探针。多年来,他们提供了有关块状物质的磁性,超导和其他电子性质的独特信息。 mu SR技术的一种新颖扩展是具有100%自旋极化的mu(+)的可用性,其能量可以从0.5到30 keV连续变化。这允许薄膜,近表面区域和多层结构的深度相关的μSR研究在相似的1到相似的300 nm范围内。在简要介绍了该技术的现状之后,概述了一些实验,包括对各种磁性和超导材料的薄膜和异质结构的深度依赖性研究,从铜酸盐到自旋玻璃,再到与自旋电子学应用相关的结构和化合物。

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