Topological Insulators

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

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2d-materials

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.

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

MBE Systems

MBE Components

Standard Effusion Cell WEZ

Valved Selenium Cracking Source VSCS

Valved Corrosive Cracker Source VCCS

Thermal Cracker Cell TCC

Vertical Electron Beam Evaporator EBVV

Valved Alkali Metal Source AKS