Transport properties of doped Bi₂Se₃ and Bi₂Te₃ topological insulators and heterostructures

In this review article, the recent experimental and theoretical research progress in Bi₂Se₃- and Bi₂Te₃-based topological insulators is presented, with a focus on the transport properties and modulation of the transport properties by doping with nonmagnetic and magnetic elements. The electrical transport properties are discussed for a few different types of topological insulator heterostructures, such as heterostructures formed by Bi₂Se₃- and Bi₂Te₃-based binary/ternary/quaternary compounds and superconductors, nonmagnetic and magnetic metals, or semiconductors.