Topological phenomena at defects in acoustic, photonic and solid-state lattices
There are two prominent applications of the mathematical concept of topology to the physics
of materials: band topology, which classifies different topological insulators and semimetals …
of materials: band topology, which classifies different topological insulators and semimetals …
Fragile dislocation modes in obstructed atomic topological phases
G Malavé, J Schifferli, R Soto-Garrido, PA Orellana… - Physical Review B, 2024 - APS
We here introduce the concept of fragile dislocation modes, which are localized only in a
fraction of a topological phase while otherwise leaking into the bulk continuum. As we …
fraction of a topological phase while otherwise leaking into the bulk continuum. As we …
Emergent metallicity at the grain boundaries of higher-order topological insulators
Topological lattice defects, such as dislocations and grain boundaries (GBs), are
ubiquitously present in the bulk of quantum materials and externally tunable in …
ubiquitously present in the bulk of quantum materials and externally tunable in …