Phys. Rev. B 80, 104439 (2009) [6 pages]

Imaging of lateral spin valves with soft x-ray microscopy

Abstract

References

Citing Articles (1)

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O. Mosendz^1,*, G. Mihajlović¹, J. E. Pearson¹, P. Fischer², M.-Y. Im², S. D. Bader³, and A. Hoffmann^3,†
¹Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
²Center for X-ray Optics, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
³Materials Science Division and Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, USA

Received 15 July 2009; revised 8 September 2009; published 30 September 2009

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 L₃ absorption edge, which should directly image the spin accumulation in Cu, although electrical transport measurements in a nonlocal geometry clearly detected the spin accumulation in Cu, which remained unchanged during illumination with circular polarized x rays at the Co and Cu L₃ absorption edges.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.80.104439

DOI:

10.1103/PhysRevB.80.104439

PACS:

75.25.+z, 75.75.+a, 72.25.Hg, 73.40.Jn

^*mosendz@anl.gov

^†hoffmann@anl.gov

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Phys. Rev. B 80, 104439 (2009) [6 pages]

Imaging of lateral spin valves with soft x-ray microscopy