Evidence of β-antimonene at the Sb/Bi 2 Se 3 interface

Nanotechnology. 2018 Feb 9;29(6):065704. doi: 10.1088/1361-6528/aaa2c4.

Abstract

We report a study of the interface between antimony and the prototypical topological insulator Bi2Se3. Scanning tunnelling microscopy measurements show the presence of ordered domains displaying a perfect lattice match with bismuth selenide. Density functional theory calculations of the most stable atomic configurations demonstrate that the ordered domains can be attributed to stacks of β-antimonene.