Fabrication and characterization of topological insulator Bi2Se3 nanocrystals
Fabrication and characterization of topological insulator Bi2Se3 nanocrystals
In the recently discovered class of materials known as topological insulators, the presence of strong spin-orbit coupling causes certain topological invariants in the bulk to differ from their values in vacuum. The sudden change of invariants at the interface results in metallic, time reversal invariant surface states whose properties are …