fig1

Figure 1. (A) XRD spectra of ac-FeCoNiMo and FeCoNi (B and C) TEM images of ac-FeCoNiMo, with the red dashed frame showing the amorphous structure region; (D-G) elemental mappings of ac-FeCoNiMo. XRD: X-ray diffraction; TEM: transmission electron microscope.