Figure 39

Fig. 39: Gd L₃-XMCD response of the Gd-Co₂ amorphous thin film for two 0.1 T pulses of 25 ns and 60 ns. Each data point represents the magnitude of the GdL₃-XMCD (which was 0.02 at its maximum) collected in 3 minutes. The reasonable statistics of the XMCD signal in the inset results from the difference of absorption taken with left and right circular- polarised X-rays averaged over 31 QWP-induced flipping of the photon helicity, each absorption being a sum of 80 spectra.

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