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Soft X-ray Resonant Magnetic Scattering Studies on Fe/CoO Exchange Bias System

Florin Radu·Alexei Nefedov·Johannes Grabis·Gregor Nowak·Andre Bergmann·Hartmut Zabel
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Abstract

We have used soft X-ray Resonant Magnetic Scattering (XRMS) to search for the presence of an effective ferromagnetic moment belonging to the antiferromagnetic (AF) layer which is in close contact with a ferromagnetic (F) layer. Taking advantage of the element specificity of the XRMS technique, we have measured hysteresis loops of both Fe and CoO layers of a CoO(40 Å)/Fe(150 Å) exchange bias bilayer. From these measurements we have concluded that the proximity of the F layer induces a magnetic moment in the AF layer. The F moment of the AF layer has two components: one is frozen and does not follow the applied magnetic field and the other one follows in phase the ferromagnetic magnetization of the F layer. The temperature dependence of the F components belonging to the AF layer is shown and discussed.

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Florin Radu, Alexei Nefedov, Johannes Grabis, Gregor Nowak, Andre Bergmann, Hartmut Zabel. 2005-05-19. Soft X-ray Resonant Magnetic Scattering Studies on Fe/CoO Exchange Bias System. https://doi.org/10.1016/j.jmmm.2005.10.064

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