Fig. 3
From: Density functional theory-based electric field gradient database

EFG tensor component and asymmetry parameter distribution for all the atomic sites in the materials under investigation. (a) VXX, (b) VYY, (c) VZZ, (d) asymmetry parameter. In the panel (d), sites in which Vzz = 0, and therefore η is ill-defined, are excluded from the dataset.