Experimental XMCD spectra for with temperature variations. With lower temperature, the spectrum changes sign while the spectrum becomes stronger.
Theoretical XMCD spectra for with moment variations. Similar to Fig. 1, the spectrum changes sign while spectrum becomes stronger with moment increasing. The moments are given as Bohr magnetons.
Site average conduction electron magnetic moments of Er in . Since Er and Fe have a ferrimagnetic ordering, Er has negative magnetic moment.
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