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High-order topological insulators from high-dimensional Chern insulators
Ioannis Petrides, Oded Zilberberg
Topological insulators are a novel state of matter that share a common feature: their spectral bands are associated with a nonlocal integer-valued index, commonly manifesting throu…
Emergence of criticality through a cascade of delocalization transitions in quasiperiodic chains
V. Goblot, A. Štrkalj, N. Pernet +10
Conduction through materials crucially depends on how ordered they are. Periodically ordered systems exhibit extended Bloch waves that generate metallic bands, whereas disorder is…
Detection of Fermi Arcs in Weyl Semimetals through Surface Negative Refraction
Guangze Chen, Oded Zilberberg, Wei Chen
One of the main features of Weyl semimetals is the existence of Fermi arc surface states at their surface, which cannot be realized in pure two-dimensional systems in the absence o…
Electron-Hole Interference in an Inverted-Band Semiconductor Bilayer
Matija Karalic, Antonio Štrkalj, Michele Masseroni +7
Electron optics in the solid state promises new functionality in electronics through the possibility of realizing micrometer-sized interferometers, lenses, collimators and beam spl…
Field-Effect Transistor based on Surface Negative Refraction in Weyl Nanowires
Guangze Chen, Wei Chen, Oded Zilberberg
Weyl semimetals are characterized by their bulk Weyl points -- conical band touching points that carry a topological monopole charge -- and Fermi arc states that span between the W…
Topological spin excitations in Harper-Heisenberg spin chains
J. L. Lado, Oded Zilberberg
Many-body spin systems represent a paradigmatic platform for the realization of emergent states of matter in a strongly interacting regime. Spin models are commonly studied in one-…