4 papers
Sliding-induced topological transitions in bilayer biphenylene
L. L. Lage, S. Bravo, O. Arroyo-Gascón +2
Sliding-induced topological transitions in biphenylene bilayers are investigated, considering various stacking configurations which are analyzed from a symmetry perspective and des…
Two-dimensional orbital-obstructed insulators with higher-order band topology
Olga Arroyo-Gascón, Sergio Bravo, Mónica Pacheco +1
Obstructed atomic phases, with their realizations in systems of diverse dimensionality, have recently arisen as one of the topological states with greatest potential to show higher…
Symmetry-enforced metal-insulator transition and topological adiabatic charge pump in sliding bilayers of threefold symmetric materials
Sergio Bravo, P. A. Orellana, L. Rosales
Sliding bilayers are systems that exploit the possibility of relatively translating two monolayers along a specific direction in real space, such that different stackings could be…
Symmetry-protected metallic and topological phases in penta-materials
Sergio Bravo, J. D. Correa, Leonor Chico +1
We analyze the symmetry and topological features of a family of materials closely related to penta-graphene, derived from it by adsorption or substitution of different atoms. Our d…