Topological Insulators

Topological insulators are materials whose bulk is electrically insulating, whereas their surfaces exhibit conducting states.

2d-materials


edge stages
Schematic illustration of symmetry protected spin polarized edge states in 2-dimensional topological insulators. They are expected to exhibit dissipation less current.

Applications for MBE growth of Topological Insulators

Topological insulators are materials whose bulk is electrically insulating, whereas their surfaces exhibit conducting states. There are  two main classes: three-dimensional (3D) and two-dimensional (2D) material systems. The 2D topological insulators are expected to exhibit one dimensional dissipationless edge channels, while the 2D plane inside is insulating.

Materials of special interest are: HgTe, Bi2Se3 Bi2Te3 , Sb2Te3 , Stanene, Heusler compounds, special oxides, and many others.

MBE Systems

MBE Components