Aggregation of BiTe Monolayer on Bi${}_2$Te${}_3$(111) Induced by Diffusion of Intercalated Atoms in van der Waals Gap

Zhi-Wen Wang, Wen-Kai Huang, Kai-Wen Zhang +3

We report a post-growth aging mechanism of Bi${}_2$Te${}_3$(111) films with scanning tunneling microscopy in combination with density functional theory calculation. It is found that a…