Figure 1

(a) Different views of atomic structure of \(\hbox {Sb}_2\hbox {X}_3\) (XÂ =Â S, Se, Te) monolayer, with the unit cell distinguished with a rectangle. (b) Schematic of structural parameters in a \(\hbox {Sb}_2\hbox {X}_3\) lattice. (c) Ab initio molecular dynamics (AIMD) for these monolayers at room temperature. (d) The top and side views of the structures after 5 ps of simulation.