Higher-order topological insulators in amorphous solids
Adhip Agarwala, Vladimir Juričić, Bitan Roy
Abstract
This paper shows that crystalline topological phases can be materialized in noncrystalline systems. The authors use explicit computation of the corner modes and bulk multipolar invariant and find that when weak structural disorder is confined within the interior of the system it can support amorphous higher-order topological insulators
Topics & Concepts
Topological insulatorAmorphous solidMaterials scienceComputationCondensed matter physicsInvariant (physics)Topology (electrical circuits)PhysicsTopological data analysisTopological defectTheoretical physicsTopological Materials and PhenomenaChemical and Physical Properties of MaterialsQuantum and electron transport phenomena