Fig. 5
From: Proximity coupling induced two dimensional magnetic order in EuO-based synthetic ferrimagnets
XMCD-PE\(_{\text {rel}}\) vs. electron emission angle \(\Theta\) of (a) \(11\) nm EuO w/ and w/o Fe capping, (d) \(3\) nm EuO with Fe and Co capping at \(T_{\text {low}}\) and (e) at \(T_{\text {high}}\). In (b), the XMCD-PE\(_{\text {meas}}\) of the \(11\) nm EuO samples are plotted vs. \(\Theta\). The full (dashed) reference lines which indicate a \(\cos {(\Theta )}\) (\(\cos ^2{(\Theta )}\)) dependence visualize that XMCD-PE\(_{\text {meas}}\) is proportional to \(\cos {(\Theta )}\). As sketched in (c), increasing XMCD-PE\(_{\text {rel}}\) with increasing \(\Theta\) reveal an enhanced (reduced) magnetic moment of EuO (Fe or Co) at the interface with respect to bulk EuO.
