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Surface band structure of Bi1-xSbx(111)

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Klaus Kern, Carola Strasser
2015
journal articles

Abstract

Theoretical and experimental studies agree that Bi1-xSbx (0.07

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https://infoscience.epfl.ch/entities/publication/c7c7189f-6b37-497c-aa67-796604419385

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A topological insulator is a material whose interior behaves as an electrical insulator while its surface behaves as an electrical conductor, meaning that electrons can only move along the surface of the material. A topological insulator is an insulator for the same reason a "trivial" (ordinary) insulator is: there exists an energy gap between the valence and conduction bands of the material. But in a topological insulator, these bands are, in an informal sense, "twisted", relative to a trivial insulator.

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