Prof.
Eduardo Abramof
(Grupo de Pesquisa e Desenvolvimento de Materiais e Plasma - Instituto Nacional de Pesquisas Espaciais)
13/09/2022 09:50
Abstract
Bismuth telluride (Bi2Te3) is an archetype of a three-dimensional topological insulator, which presents topological surface sates (TSS) with a linear dispersion like in a Dirac cone positioned between the valence and conduction bands. The Dirac fermions on the surface are protected against scattering by the time inversion symmetry [1]. On the other hand, Pb1-xSnxTe is a topological...
