Thermoelectric transport of perfectly conducting channels in two- and three-dimensional topological insulators

Abstract

Topological insulators have gapless edge/surface states with novel transport properties. Among these, there are two classes of perfectly conducting channels which are free from backscattering: the edge states of two-dimensional topological insulators and the one-dimensional states localized on dislocations of certain three-dimensional topological insulators. We show how these novel states affect thermoelectric properties of the systems and discuss possibilities to improve the thermoelectric figure of merit using these materials with perfectly conducting channels.

10 pages, 6 figures, proceedings for The 19th International Conference on the Application of High Magnetic Fields in Semiconductor Physics and Nanotechnology (HMF-19)

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Cited by in corpus (5)

• Enhanced Thermoelectric Performance and Anomalous Seebeck Effects in Topological Insulators
• Spin-thermoelectric transport induced by interactions and spin-flip processes in two dimensional topological insulators
• Spin-dependent thermoelectric transport in HgTe/CdTe quantum wells
• Thermoelectric Effects and Topological Insulators
• Interface Metallic States between a Topological Insulator and a Ferromagnetic Insulator