Fig. 2

Resonant magnetic X-ray diffraction in Fe2Mo3O8. a Right. The magnetic order in Fe2Mo3O8. Blue and red arrows represent Fe2+ magnetic moments at two different crystallographic sites, the difference between the moment magnitudes is exaggerated. Purple arrows represent the net magnetic moments of the Fe planes stacked along the c axis. Left. Magnetic resonance at the (0,0,1) magnetic Bragg peak. b X-ray fluorescence through the LII and LIII absorption edges. c Temperature dependence of the magnetic (0,0,1) peak intensity, representative of the magnetic order parameter behavior