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The spin polarization of Mn atoms in paramagnetic CuMn alloys induced by a Co layer

Abes, M; Atkinson, D; Tanner, BK; Charlton, T; Langridge, S; Hase, TPA; Ali, M; Marrows, CH; Neudert, A; Hicken, RJ; Mirone, A; Arena, D

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Authors

M Abes

D Atkinson

T Charlton

S Langridge

TPA Hase

M Ali

CH Marrows

A Neudert

RJ Hicken

A Mirone

D Arena



Abstract

Using the surface, interface, and element specificity of x-ray resonant magnetic scattering in combination with x-ray magnetic circular dichroism, we have spatially resolved the polarization, and hence the spin accumulation in Mn high susceptibility material in close proximity to a ferromagnetic layer. The magnetic polarization of Mn and Cu 3d electrons in paramagnetic CuMn layers is detected in a Co/Cu(x)/CuMn structure for varying copper layer thicknesses (x). The size of the Mn and Cu L2–3-edge dichroism shows a decrease in the polarization for increasing copper thickness indicating the dominant interfacial nature of the Cu and Mn spin polarization. The Mn polarization appears to be much higher than that of Cu.

Citation

Abes, M., Atkinson, D., Tanner, B., Charlton, T., Langridge, S., Hase, T., …Arena, D. (2009). The spin polarization of Mn atoms in paramagnetic CuMn alloys induced by a Co layer. Journal of Applied Physics, 105(7), Article 07C703. https://doi.org/10.1063/1.3063065

Journal Article Type Article
Publication Date Apr 1, 2009
Deposit Date Oct 24, 2012
Publicly Available Date Oct 24, 2012
Journal Journal of Applied Physics
Print ISSN 0021-8979
Electronic ISSN 1089-7550
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 105
Issue 7
Article Number 07C703
DOI https://doi.org/10.1063/1.3063065
Keywords Cobalt, Copper alloys, Electron spin polarisation, Ferromagnetic materials, Interface magnetism, Magnetic circular dichroism, Manganese alloys, Paramagnetic materials.

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Copyright Statement
© 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Abes, M. and Atkinson, D. and Tanner, B.K. and Charlton, T. and Langridge, S. and Hase, T.P.A. and Ali, M. and Marrows, C.H. and Neudert, A. and Hicken, R.J. and Mirone, A. and Arena, D. (2009) 'The spin polarization of Mn atoms in paramagnetic CuMn alloys induced by a Co layer.', Journal of applied physics., 105 (7). 07C703 and may be found at http://dx.doi.org/10.1063/1.3063065





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