37 citations · 110 across the 11 of their papers we have counts for
11 papers
Transport properties and topological phase transitions for a Creutz-Su-Schrieffer-Heeger ladder
K. A. González, S. Bravo, L. Rosales +1
In this work, we investigate the electronic, topological, and transport properties of a Creutz-Su-Schrieffer-Heeger (CSSH) ladder. Using a tight-binding model within the Green's fu…
Topological states and flat bands induced by bound states in the continuum in a ladder-shaped one-dimensional photonic crystal
Sofía Pinto, P. A. Orellana, Sergio Bravo
One-dimensional crystals serve as a versatile platform for engineering nontrivial states, which can be easily explored in transport configurations. In this work, we analyze the pro…
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…
Fractional corner charges in threefold-symmetric two-dimensional materials with fragile topology
Olga Arroyo-Gascón, Sergio Bravo, Leonor Chico +1
We perform a systematic study of the signatures of fragile topology in over 50 nonmagnetic two-dimensional materials with formula AB, belonging to space group -. Using…
The role of Coulomb interaction on the electronic properties of monolayer NiX (X = S, Se): A DFT+U+V study
Sergio Bravo, P. A. Orellana, L. Rosales
The electronic structure of Nickel dichalcogenides, NiS and NiSe, in monolayer form, is studied employing first-principles methods. We assess the importance of band orderin…
Topological bands in the PdSe pentagonal monolayer
Sergio Bravo, M. Pacheco, J. D. Correa +1
The electronic structure of monolayer pentagonal palladium diselenide (PdSe2) is analyzed from the topological band theory perspective. Employing first-principles calculations, eff…
Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response
Sergio Bravo, M. Pacheco, V. Nunez +2
Two-dimensional pentagonal structures based on the Cairo tiling are the basis of a family of layered materials with appealing physical properties. In this work we present a theoret…
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…
Tight-binding model for opto-electronic properties of penta-graphene nanostructures
Sergio Bravo, J. D. Correa, Leonor Chico +1
We present a tight-binding parametrization for penta-graphene that correctly describes its electronic band structure and linear optical response. The set of parameters is validated…