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

作者：Morenzoni Elvezio^*

来源：Physica B: Condensed Matter , 2009, 404(5-7): 577-580.

DOI：10.1016/j.physb.2008.11.125

• Thin films
• Heterostructures
• Low-energy muons

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.

• 出版日期2009-4-15