Journal Article

PreJuSER-12596

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Resonant magnetic reflectivity in the extreme ultraviolet spectral range: Interlayer-coupled Co/Si/Ni/Fe multilayer system

Grychtol, P.FZJ* ; Adam, R.FZJ* ; Valencia, S. ; Cramm, S.FZJ* ; Bürgler, D. E.FZJ* ; Schneider, C. M.FZJ*

2010
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/10958  doi:10.1103/PhysRevB.82.054433

Abstract: A polycrystalline test structure comprising a 5 nmcobalt and a 10 nm nickel/ iron layer separated by a silicon layer ranging from 1.5 to 4 nm prepared by thermal evaporation has been investigated by resonant magnetic reflectivity measurements of horizontally polarized light in the extreme ultraviolet spectral range. By exploiting the transversal magneto-optical Kerr effect at the M absorption edges of cobalt and nickel (59.5 eV and 66.5 eV) a magnetic contrast as large as 80% for cobalt and 25% for nickel can be obtained near a Brewster angle of about 45. Angle- and energy-dependent scans of the magnetic asymmetry as well as element-selective, magneto-optical loops of the hysteresis were recorded against the thickness of the interlayer, reflecting the switching behavior of the individual ferromagnetic layers as a function of the interlayer coupling.

Keyword(s): J

Note: We would like to thank Bernd Kupper, Jurgen Lauer, Heinz Pfeiffer, Norbert Schnitzler, and Reinert Schreiber for their relentless technical support, without which this work would not have been possible. We also are grateful to the BESSY staff for their assistance in running the beamline 24/7. This work was financially supported by the BMBF (Project No. 05KS7UK1).

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Contributing Institute(s):

1. Elektronische Eigenschaften (IFF-9)
2. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2010

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