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Figure 5
(a) Energy scan performed on the FeGd thin film around the Fe M2,3-edge. The Faraday angle is measured between opposite saturation states, to be directly compared with the hysteresis loop amplitude. The red line shows data taken from von Korff Schmising et al. (2020BB21) and extracted from magnetic circular dichroism measurements via a Kramers-Kronig calculation. (b) Hysteresis loops measured at 53.9 eV for two different probing fluences. The experimental points have been obtained by fitting the polar profiles according to equation (3)[link] and by removing from each loop its average value. (c) Delay scans measured at 52.8 eV for increasing pump fluences. The curve corresponding to the highest fluence shows magnetization inversion. The solid lines are fits performed according to equation (4)[link].

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 4| July 2022| Pages 969-977
https://doi.org/10.1107/S1600577522004027
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