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

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

2010-10-12

arxiv.org/abs/1010.2304v1

J. Phys.: Conf. Ser. 334, 012013 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 6 figures, proceedings for The 19th International Conference on the Application of High Magnetic Fields in Semicondu

Scientific paper

10.1088/1742-6596/334/1/012013

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.

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