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arXiv · 0907.2937

Imaging of lateral spin valves with soft X-ray microscopy

O. Mosendz·G. Mihailovic·J. E. Pearson·P. Fischer·M. -Y. Im·S. D. Bader·A. Hoffmann
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Abstract

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.

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O. Mosendz, G. Mihailovic, J. E. Pearson, P. Fischer, M. -Y. Im, S. D. Bader, A. Hoffmann. 2009-07-16. Imaging of lateral spin valves with soft X-ray microscopy. https://doi.org/10.1103/physrevb.80.104439

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