Fig. 2: L – dependent study of the magnetic continuum in Fe_4.75GeTe₂.

a–g RIXS spectra measured at different L values from 1.74 to 3.23 r.l.u., at 70 K. For all spectra, H < ∣0.04∣ and K = 0. Each spectrum is fitted with an elastic peak (gray), a phonon (blue), a magnon (red), and a continuum (green), as introduced in Fig. 1e, f. The vertical dashed line marks the continuum centers around ~75 meV. h L-dependence of the continuum integrated spectral weight (green dotted line). The error bars are half of one standard deviation. The thick green line is a sinusoidal fit of the data using Eq. (1) for d = 10 Å, while the dotted lines represent the upper and lower boundaries considering the extracted fit error for d of ±1 Å. i Calculated intensity modulation for intra-slab (red) and inter-slab (black) distances, as defined within the crystal structure displayed in (j) using with the same color convention. A gold curved line in (j) highlights the Te–Te distance across two neighboring slabs.