Fig. 4: Simulated contributions of valence and core electrons to the electron charge density.
From: Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale

a Atomic structure of an MoS2 supercell. b DFT derived valence electrons and (c) core electrons corresponding to the atomic structure in (a). Probe convolved with (d) valence and (e) core electrons. f Sum of (d) and (e) showing the net electron charge density. All images share the same scalebar with (b).