51 citations · 149 across the 14 of their papers we have counts for
15 papers
Physical Pictures for Quasisymmetry in Crystals
Bryan D. Assunção, Emmanuel V. C. Lopes, Tome M. Schmidt +1
Quasisymmetry (QS) provides a novel route to understand and control near-degeneracies, Berry curvature, optical selection rules, and symmetry-protected phenomena in quantum materia…
Weyl semimetal engineering by symmetry control in NiTe
Marcos G. O. Junior, Augusto L. Araújo, Emmanuel V. C. Lopes +1
In this work, we investigate the emergence of Weyl points in an inversion symmetry-breaking 1T-NiTe system. Through first-principles calculations based on the density functiona…
Noncentrosymmetric two-dimensional Weyl semimetals in porous Si/Ge structures
Emmanuel V. C. Lopes, Rogerio J. Baierle, Roberto H. Miwa +1
In this work we predict a family of noncentrosymmetric two-dimensional (2D) Weyl semimetals composed by porous Ge and SiGe structures. These systems are energetically stable graphe…
RKKY interactions mediated by topological states in transition metal doped bismuthene
Emmanuel V. C. Lopes, E. Vernek, Tome M. Schmidt
We have investigated magnetic interactions between transition metal ions in bismuthene topological insulator with protected edge states. We find that these topological states have…
Ferromagnetism in armchair graphene nanoribbon heterostructures
P. A. Almeida, L. S. Sousa, Tome M. Schmidt +1
We study the properties of flat-bands that appear in a heterostructure composed of strands of different widths of graphene armchair nanoribbons. One of the flat-bands is reminiscen…
Tuning electronic and optical properties of bismuth monolayers by molecular adsorption
Erika N. Lima, Andreia L. da Rosa, Renato. B. Pontes +3
We perform first-principles calculations of electronic and dielectric properties of bismuthene functionalized with small ligands using first-principle calculations. We show that al…