Fig. 11

a STM topography of Mo-doped BaFe2As2 surface obtained at T = 4 K. The scale bar is 5 nm. b Schematics of CITS experiment in which a 3D stack of conductance maps G (r, eU) is acquired over STM field of view. c–h Results of NMF-based decomposition o of CITS data over the area in a into 3 components. Loading maps (c–e) corresponding to spectral endmembers (f–h). See text for more details