159 citations · 724 across the 17 of their papers we have counts for
6 papers · 1 filter
Structural and electronic properties of realistic two-dimensional amorphous topological insulators
Bruno Focassio, Gabriel R. Schleder, Marcio Costa +2
We investigate the structure and electronic spectra properties of two-dimensional amorphous bismuthene structures and show that these systems are topological insulators. We employ…
Disorder effects of vacancies on the electronic transport properties of realistic topological insulators nanoribbons: the case of bismuthene
Armando Pezo, Bruno Focassio, Gabriel R. Schleder +3
The robustness of topological materials against disorder and defects is presumed but has not been demonstrated explicitly in realistic systems. In this work, we use state-of-the-ar…
Disentangling orbital and valley Hall effects in bilayers of transition metal dichalcogenides
Tarik P. Cysne, Marcio Costa, Luis M. Canonico +3
It has been recently shown that monolayers of transition metal dichalcogenides (TMDs) in the 2H structural phase exhibit relatively large orbital Hall conductivity plateaus within…
Dual Topological Insulator Device with Disorder Robustness
Bruno Focassio, Gabriel R. Schleder, Armando Pezo +2
Two-dimensional NaBi is a dual topological insulator protected by time-reversal and mirror symmetry, resulting in a promising platform for devices design. However, in reality,…
Discovery of Higher-Order Topological Insulators using the Spin Hall Conductivity as a Topology Signature
Marcio Costa, Gabriel R. Schleder, Carlos Mera Acosta +4
The discovery and realization of topological insulators, a phase of matter which hosts metallic boundary states when the -dimension insulating bulk is confined to ()-dimens…
Non-reciprocal magnons in a two dimensional crystal with off-plane magnetization
M. J. T. Costa, J. Fernández-Rossier, N. M. R. Peres +1
Non reciprocal spin waves have a chiral asymmetry so that their energy is different for two opposite wave vectors. They are found in atomically thin ferromagnetic overlayers with i…