20th Brazilian Workshop On Semiconductor Physics

Session

Plenary

16 sept. 2022, 15:10

Instituto Tecnológico de Aeronáutica

Description

Robustness of topological insulators and the fragility of trivial insulators

Documents de présentation

Adalberto Fazzio_Abstract_BWSP_other_new.pdf

71. Robustness of topological insulators and the fragility of trivial insulators

Prof. Adalberto Fazzio (Ilum School of Science, Brazilian Center for Research in Energy and Material)

16/09/2022 15:10

Abstract

Vacancies in materials structure, lowering its atomic density, take the system closer to the atomic limit, to which all systems are topologically trivial. Here we show a mechanism of mediated interaction between vacancies inducing a topologically nontrivial phase. We explore topological transition dependence with the vacancy density in transition metal dichalcogenides. As a case of...