6 papers · 1 filter
Giant Flat Band Amplification via Inertial Anchors
Wentao Mao, Stefano Gonella
In electronic materials, flat bands are associated with compact electron localization, with implications for superconductivity, ferromagnetism and strongly correlated systems. The…
Lattice Materials with Topological States Optimized On-Demand
Pegah Azizi, Rahul Dev Kundu, Weichen Li +3
Topological states of matter, first discovered in quantum systems, have opened new avenues for wave manipulation beyond the quantum realm. In elastic media, realizing these topolog…
Non-local twist sequences in floppy kagome chains
Pegah Azizi, Stefano Gonella
The twisted kagome family comprises a spectrum of configurations that can be realized through the sweep of a single configurational degree of freedom known as a twist angle. Recent…
Omnidirectional domain wall modes protected by fragile topological states
Pegah Azizi, Siddhartha Sarkar, Kai Sun +1
So-called fragile topological states of matter challenge our conventional notion of topology by lacking the robustness typically associated with topological protection, thereby dis…
Dynamics of self-dual kagome metamaterials and the emergence of fragile topology
Pegah Azizi, Siddhartha Sarkar, Kai Sun +1
Recent years have seen the discovery of systems featuring fragile topological states. These states of matter lack certain protection attributes typically associated with topology a…
Edge-selective reconfiguration in polarized lattices with magnet-enabled bistability
Luca Iorio, Raffaele Ardito, Stefano Gonella
The signature topological feature of Maxwell lattices is their polarization, which manifests as an unbalance in stiffness between opposite edges of a finite domain. The manifestati…