Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2009-07-16
Phys. Rev. B, 80, 104439, 2009
Physics
Condensed Matter
Other Condensed Matter
Scientific paper
We investigated Co/Cu lateral spin valves by means of high-resolution transmission soft x-ray microscopy with magnetic contrast that utilizes x-ray magnetic circular dichroism (XMCD). No magnetic XMCD contrast was observed at the Cu L$_3$ absorption edge, which should directly image the spin accumulation in Cu. Although electrical transport measurements in a non-local geometry clearly detected the spin accumulation in Cu, which remained unchanged during illumination with circular polarized x-rays at the Co and Cu L$_3$ absorption edges.
Bader Samuel D.
Fischer Paul
Hoffmann Achim
Im Mi-Young
Mihailovic G.
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