20th Brazilian Workshop On Semiconductor Physics

Session

Oral

13 sept. 2022, 09:50

Instituto Tecnológico de Aeronáutica

Documents de présentation

3-Abstract_Abramof_BWSP-20th - Eduardo Abramof_new.pdf

26. Experimental studies on epitaxial films of three-dimensional (Bi2Te3) and crystalline (Pb1-xSnxTe) topological insulators

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...