4 papers
Topological states and flat bands induced by bound states in the continuum in a ladder-shaped one-dimensional photonic crystal
SofÃa 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…
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…
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…
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…