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

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.

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.

Item Type:Article
Keywords:Cobalt, Copper alloys, Electron spin polarisation, Ferromagnetic materials, Interface magnetism, Magnetic circular dichroism, Manganese alloys, Paramagnetic materials.
Full text:PDF - Published Version (361Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1063/1.3063065
Publisher 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
Record Created:24 Oct 2012 10:20
Last Modified:05 Apr 2013 13:25

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