Fig. 1: STEM images of RexMo1-xS2 at different values of Re concentration.

a x = 0.05, b x = 0.55, c x = 0.78, and d x = 0.95. Identified Mo and Re atoms are indicated by red and black dots, respectively. At x = 0.05, the material adopts the MoS2 lattice structure (e), while for higher Re ratios it adopts the ReS2 lattice (f). Color code: Mo (pink), Re (cyan), and S (yellow).