Fig. 3: Fe L2 and L3 EELS spectra of magnetite and iron-rich layer in a Ryugu grain. | Nature Astronomy

Fig. 3: Fe L2 and L3 EELS spectra of magnetite and iron-rich layer in a Ryugu grain.

From: Influx of nitrogen-rich material from the outer Solar System indicated by iron nitride in Ryugu samples

Fig. 3

a, Fe L2 and L3 EELS spectra obtained from the iron-rich layer (blue) and magnetite (magenta) as a function of electron energy loss (eV, electron volt) (x axis) and normalized intensity (arbitrary unit) (y axis). Arrowheads indicate peaks of the Fe L2 and L3 edges. Magnetite has a Fe L3 peak position at 709.03 eV whereas the iron-rich layer has a Fe L3 peak position at 708.03 eV. b, HAADF-STEM image (164 nm × 298 nm) showing the selected regions for EELS spectra (blue, iron-rich layer and magenta, magnetite). Pt-C is the platinum coat. Sample ID is A0104-026006.

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